GERALD J. MARKS, M.D.
Curriculum Vitae

Marks Colorectal Surgical Associates
Lankenau Hospital
Jefferson Health System

PATIENT OFFICE:
Marks Colorectal Surgical Associates
Medical Office Building West
Suite 330
100 Lancaster Avenue
Wynnewood, Pennsylvania 19096
Telephone: (610) 645-9093
FAX: (610) 645-9476

Marks Colorectal Surgical Associates
227 North Broad Street
Suite 100
Philadelphia, Pennsylvania 19107
Telephone: (215)-923-5010
FAX: (610)-645-9476

EDUCATION:
Villanova College, Villanova, Pennsylvania, l945
Jefferson Medical College, Philadelphia, Pennsylvania, M.D., l949
Ohio State University, Postgraduate Studies in Physiology, l952

TRAINING:
Internship: Jefferson Medical College, July 1949 to January 1951
Residency: Surgery, Jefferson Medical College Hospital, 1952-57
Proctology, Jefferson Medical College Hospital, 1953-54
Fellow: American Cancer Society, 1953-54

MILITARY SERVICE:
Seaman and Midshipman, United States Naval Reserve, Active Duty
V-6 and V-l2, l943-45
Captain United States Air Force Active Duty
Project Engineer, High Altitude Physiology;
Aeromedical Laboratories l950-l952; Wright-Patterson AFB, Ohio

BOARD CERTIFICATION AND FELLOWSHIPS:
Diplomate American Board of General Surgery
Diplomate American Board of Colon and Rectal Surgery
Fellow American College of Surgeons
Fellow American Society of Colon and Rectal Surgeons
Fellow Pennsylvania Society of Colon and Rectal Surgery

LICENSURE: Pennsylvania and New Jersey

CURRENT PROFESSIONAL POSITIONS:
Co-Director, Marks Colorectal Surgical Associates, Lankenau Hospital, 1998 - Present
Senior Investigator, Lankenau Institute for Medical Research, 1999 - Present
Director, Comprehensive Rectal Cancer Center, Lankenau Hospital, 1998 - Present
Director, International Network of Comprehensive Rectal Cancer Centers, 1997 - Present
Secretary, International Federation of Societies of Endoscopic Surgeons, 1999-Present
Senior Editor, Surgical Endoscopy, Ultrasound, and Interventional Techniques. (Springer-Verlagh), 1988 - Present
Editorial Board Member, General Surgery and Laparoscopy News, (McMahon Group), 1991 - Present
Editorial Consultant/Reviewer, Cancer, 1996 - Present
Editorial Consultant/Reviewer, American Journal of Clinical Oncology, 1996 - Present
Abstract Reviewer, Collegium Internationale Chirurgiae Digestivae, 1996 - Present
Abstract Reviewer, The Society for Surgery of the Alimentary Tract, Inc., 1996 - Present
Advisory Board Member, Center for Laparoscopic and Minimally Invasive Surgery, Allegheny University of the Health Sciences, 1997 - Present
Board Director, SAGES Education Research Foundation, 1998
Collaborator, Scientific Advisory Board, Ultrasonology for Surgeons and Image Guided Procedures, 1998 - Present

HOSPITAL AFFILIATIONS:
Attending Surgeon, Lankenau Hospital, Wynnewood, Pennsylvania
Attending Surgeon, Bryn Mawr Hospital, Bryn Mawr, Pennsylvania
Attending Surgeon, Paoli Hospital, Paoli, Pennsylvania
Attending Surgeon, Tenet-Hahnemann Hospital, Philadelphia, Pennsylvania
Attending Surgeon, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
Consultant in Colorectal Surgery: VA Hospital, Coatesville, Pennsylvania
Consultant in Colorectal Surgery: VA Hospital, San Juan, Puerto Rico
Consultant in Colorectal Surgery: U.S. Navy Regional Medical Center
Consultant in Colorectal Surgery: VA Hospital, Wilmington, Delaware
Consultant in Colorectal Surgery: Wills Eye Hospital, Philadelphia, Pennsylvania

PREVIOUS POSITIONS:
Edgar J. Deissler Professor of Surgery, Allegheny University of the Health Sciences, 1995 - 1998
Director of GI Surgical Endoscopy, Allegheny University of the Health Sciences, 1995 - 1998
Director, Comprehensive Rectal Cancer Center, Allegheny University of the Health Sciences, 1995 - 1998
Professor of Surgery, Jefferson Medical College, Thomas Jefferson University
Director, Comprehensive Rectal Cancer Center, Thomas Jefferson University Hospital
Associate Director, Jefferson Cancer Center, Thomas Jefferson University
Director, Division of International Surgical Education and Practice, Center for Research in Medical Education and Health Care, Jefferson Medical College, Thomas Jefferson University
Co-Director, Colorectal Cancer Genetics Center, Thomas Jefferson University Hospital
Executive Director, The Colorectal Surgical Foundation
President, International Federation of Societies of Endoscopic Surgeons, 1991-1999
Chairman, International Relations Committee,
Society of American Gastrointestinal Endoscopic Surgeons (SAGES), 1991 - 1992
Vice President, Philadelphia County Medical Society, 1986-87, 1987-88
Director, Board of Directors, Philadelphia County Medical Society, 1986-1988
Instructor to Professor of Surgery, Jefferson Medical College, l957 to l978
Assistant Chief of Surgery, Philadelphia General Hospital, l957-7l
Assistant Chief, Surgical Outpatient Department, Philadelphia General Hospital, l957-7l
Assistant Director, Tumor Clinic, Jefferson Medical College Hospital, l959-68
Co-Founding Director, Tumor Registry, Thomas Jefferson Hospital, 1960
Chief, Proctology Clinic (Jefferson Division), Philadelphia General Hospital, l960-70
Faculty Advisor, Jefferson Rugby Club
Faculty Advisor, John H Gibbon, Jr., Surgical Society, Jefferson Medical College, l973-75
Consultant in Colorectal Surgery, Department of the Army, Valley Forge General Hospital, Phoenixville, Pennsylvania, l97l-73
Vice President, Volunteer Faculty Association, Jefferson Medical College, l970-73
President, Volunteer Faculty Association, Jefferson Medical College, l973-74
Secretary, Medical Staff, Thomas Jefferson University Hospital, l974-77
Founding President, Society of American Gastrointestinal Endoscopic Surgeons, 1980
Founding President, International Federation of Societies of Endoscopic Surgeons, 1991
Former Associate Editor: Diseases of the Colon and Rectum
Head Section of Colorectal Surgery, The Pennsylvania Hospital
Adjuvant Professor of Surgery, University of Pennsylvania.
Governor, American College of Surgeons.
Editorial Consultant, Journal of the American Medical Association
Editorial Consultant, New England Journal of Medicine
President, Northeastern Society of Colon and Rectal Surgeons.
President, Pennsylvania Society Colorectal Surgeons.
Former Council Member, Philadelphia Academy of Surgery, 1987-1990
Former Council Member, Philadelphia Metropolitan Chapter, American College of Surgeons, 1986-1990
Chief, Section of Colorectal Surgery: The Pennsylvania Hospital Founding
Director, Colorectal Surgery Residency Program, Thomas Jefferson University Hospital, 1986-1993
Founding Director, Division of Colorectal Surgery, Thomas Jefferson University Hospital, 1986-1993
Board of Governors, American College of Surgeons, representing Society of American Gastrointestinal Endoscopic Surgeons (SAGES), 1988

Dr. Gerald J. Marks - Portrait by:  Dean Paules
Dr. Gerald J. Marks

 

SPECIAL ACHIEVEMENTS AND ITEMS OF INTEREST:

Alpha Omega Alpha, l947.

Program Director of the Premiere Symposium Flexible Fiberoptic Colonoscopy - A Multidisciplinary Symposium (Jefferson Medical College), City Line Marriott, Philadelphia, PA, September 13-14, 1974.

Program Director: Fiberoptic Colonoscopy - A Multidisciplinary Symposium (Jefferson Medical College), Cherry Hill, NJ, September 22-24, 1976.

Andersen Memorial Lecturer, Medical Society of the State of New York, l977.

First Prize, Out of State Exhibit: "Flexible Fiberoptic Colonoscopy in the Total Management of the Patient with Colorectal Neoplasia." Presented by the Medical Society of New Jersey, Atlantic City, New Jersey, May l979.

Founding President, Society of American Gastrointestinal Endoscopic Surgeons (SAGES), l980..

Chairman: Gastrointestinal Endoscopy in Surgical Practice: State of the Art - An International Multidisciplinary Symposium (Jefferson Medical College/Society of American Gastrointestinal Endoscopic Surgeons), Philadelphia, PA, September 12-13, 1983.

Chairman: Gastrointestinal Endoscopy in Surgical Practice: State of the Art, II. An International Multidisciplinary Symposium, (Jefferson Medical College/Society of American Gastrointestinal Endoscopic Surgeons), Philadelphia, PA, April 9-10, 1984.

First John Cheleden Memorial Lecturer: Daytona Beach, FL, February 28, 1986.

Co-director: The Fourth International Symposium of Digestive Surgery and Endoscopy and the Ninth European Postgraduate Course of Gastrointestinal Endoscopy, Rome, Italy, April 9-12, 1986.

President, 1st World Congress of Surgical Endoscopy, Berlin, West Germany, 1988.

Honorary President, 2nd World Congress of Surgical Endoscopy, Atlanta, Georgia, 1990.

Honorary President, 3rd World Congress of Surgical Endoscopy, Bordeaux, France, 1992.

First Joe Henry Coley Lecturer. Jefferson Medical College Alumni Association, Thomas Jefferson University Philadelphia, PA, June 5, 1993.

Honorary President, 4th World Congress of Surgical Endoscopy, Kyoto, Japan, 1994.

President, Jefferson Volunteer Faculty Association.

Honorary Member: Piedmont Society Colon and Rectal Surgery.

Honorary Member: Societa Italiana di Enoscopia Digestiva.

Honorary Member: Associazone Chirurghi della Regione Abruzzo.

Honorary Member: Italian Surgical Society. Honorary Member: Endoscopic and Laparoscopic Surgeons of Asia (ELSA).

Honorary Member: American Society of Therapeutic Radiology and Oncology.

Honorary Member: Puerto Rico Chapter, American College of Surgeons.

Honorary Member: Italian Surgical Society, October 13, 1996.

Visiting Professorships:

Mayo Clinic, Rochester, Minnesota
University of Rome, Italy
University of Milan, Italy
University of South Florida, Tampa, Florida
University of Minnesota Medical School, Minneapolis, Minnesota
University of Chieti School of Medicine, Chieti, Italy
University of Palermo
Texas Tech University Health Sciences Center, Lubbock, Texas
University of Erlangen-Nürnberg, West Germany
Brown University, Providence, Rhode Island
University of Nice, Nice, France
University of Kentucky, Lexington, Kentucky
University of Medicine & Dentistry, Stratford, New Jersey
Dartmouth University, Lebanon, New Hampshire
Ohio State University, Columbus, Ohio
University of Ancona, Ancona, Italy
Wayne State University, Detroit, Michigan
New York Medical College, Valhalla, New York
MD Anderson Cancer Center, Houston, Texas
Easton Hospital, Easton, Pennsylvania
Sarasota Memorial Hospital, Sarasota, Florida
Carilion Roanoke Memorial Hospital, Roanoke, Virginia
Carolinas Medical Center, Charlotte, North Carolina

Founding Member, Board of Directors, Creative Artists Network.

Who's Who in the East 1986-1990.

Who's Who in America 1986-1990.

Who's Who in the World 1986-1990.

Member, Scientific Advisory Board, Philadelphia Committee, Weizmann Institute of Science, 1987.

Annual Gerald Marks Honorary Lectureship, Society of Gastrointestinal Endoscopic Surgeons, established 1988.

Watercolor Exposition by Gerald Marks, M.D., "La Riva" Gallery, Giullianova Lido, Italy, September 27, 1987.

Dedication of The Comprehensive Rectal Cancer Center and the First Exhibition in America of Watercolors by Gerald Marks, M.D. (in conjunction with Thomas Jefferson University and The Colorectal Surgical Foundation), May 1, 1988.

Member, Board of Directors, Bezalel Academy of Arts and Design, 1988-Present.

Member, American Physicians Art Association, 1989.

Recipient of the Seventh Annual Jonathan M. Wainwright Award of the Moses Taylor Hospital, Scranton, Pennsylvania 1989.

Recipient of the Jewish National Fund, Medical Division, "Man of The Year Award." Philadelphia, PA 1991.

Founding President, International Federation of Societies of Endoscopic Surgeons, 1991.

Establishment of The Gerald J. Marks Professorial Chair of Colorectal Surgery, Jefferson Medical College of The Thomas Jefferson University, April 6, 1992.

Watercolor Exposition by Gerald J. Marks, M.D., Morani Art Gallery, American Physicians Art Association, (in conjunction with the Medical College of Pennsylvania's Celebration), Philadelphia, PA, April 4, 1993.

Honorary Membership, Endoscopic and Laparoscopic Surgeons of Asia. May, 1993.

Recipient of the "101 People to Watch in Philadelphia" Business Philadelphia. July 1993.

Professional Advisory Board, Wellness Community of Philadelphia, August 1993.

Honorary Membership, American Society of Therapeutic Radiology and Oncology, October 12, 1993.

Watercolor Exposition, Thomas Jefferson University, Philadelphia, PA. October 1993 to January 1994.

Recipient of the Jefferson Medical College Alumni Achievement Award, June 1994.

Honorary Membership, Puerto Rico Chapter, American College of Surgeons, February 15, 1995.

Honorary President, Third International Congress on New Technology and Advanced Techniques in Surgery, sponsored by the European Association for Endoscopic Surgery (EAES), the Association Europeenne de Chirurgie Viscerale (AECV), and the Society of American Gastrointestinal Endoscopic Surgeons (SAGES), Luxembourg, June 11-17, 1995.

“Nice from the Negresco.” Water color appearing on Pentax calendar, January 1996.

“Hong Kong” and “Nice from the Negresco.” Water colors appearing in Student-Faculty Art Exhibit, Geary Lobby Gallery, Medical College of Pennsylvania and Hahnemann University, Philadelphia, Pennsylvania, March 7 to April 30, 1996.

5th World Congress of Endoscopic Surgery original watercolor poster, March 13-17, 1996.

Honorary President, 5th World Congress of Surgical Endoscopy, Philadelphia, Pennsylvania, March 13-17, 1996.

“Endoscopic Revolution and the 5th World Congress of Endoscopic Surgery.” Interview for WPVI-TV6 News, Philadelphia, Pennsylvania, Airing March 14, 1996.

“GI Disease.” Interview with Dorie Lenz, Host of Delaware Valley Forum, WPHL-TV17, Philadelphia, Pennsylvania, Airing March 25, 27, and 29, 1996.

Listed in “Top Doctors: The Very Best in 70 Specialties.” Philadelphia Magazine, May 1996.

“Colorectal Cancer.” Interview for Health Matters hosted by Pat Ciarrocchi, KYW-TV3, Philadelphia, Pennsylvania, Airing June 9, 1996.

Italian Surgical Society, Recognition Award, Rome, Italy, October 13, 1996.

Distinguished Service Award, University of Milan, Milan, Italy, October 17, 1996.

Initiated academic affiliation between Allegheny University of the Health Sciences and Pennsylvania Academy of the Fine Arts, Philadelphia, Pennsylvania, January 1997.

Initiated academic affiliation between Allegheny University of the Health Sciences and Catholic University, Rome, Italy, January 1997.

“Nice from the Negresco” and “Chama Lake.” Water colors appearing in “Left Brain, Right Brain,” Art Forms Gallery, Manayunk, Pennsylvania, February 21 to March 15, 1997.

Recipient of first SAGES Distinguished Service Award, March 19, 1997.

Featured on “Edie’s People,” interview with Edie Huggins, NBC 10, WCAU-TV 11:00 PM News, March 31, 1997.

“Hong Kong,” “Nice from the Negresco,” and “Passagnata-Umbria.” Water colors appearing in “Physicians as Artists” show at Morani Gallery, Allegheny University of the Health Sciences, East Falls, Pennsylvania, May 19 to June 30, 1997.

Chairman, Organizing Committee, Innovative Options in Rectal Cancer Management, an international consensus-type meeting, Four Seasons Hotel, Philadelphia, Pennsylvania, May 19-20, 1997.

Images Along the Way: A Surgeon’s International Journey, Volume I. Calendar created by Gerald J. Marks, M.D. for United States Surgical Corporation, 1998.

Recipient of the Brady Cancer Research Institute Award for Excellence in Cancer Treatment and Research, September 27, 1997.

Presidential Honorary Committee, 6th World Congress of Endoscopic Surgery, sponsored by the European Association for Endoscopic Surgery (EAES) and the International Federation of Societies of Endoscopic Surgeons (IFSES), Rome, Italy, May 31 to June 6, 1998.

Images Along the Way: A Surgeon’s International Journey, Volume II. Calendar created by Gerald J. Marks, M.D. for United States Surgical Corporation, 1999.

Listed in Good Housekeeping’s “318 Top Cancer Doctors for Women.” Good Housekeeping, March 1999.

Listed in Main Line Today’s “Counterattack on Cancer.” Main Line Today, April 1999.

“Art’s on the Menu.” Article featuring the art work of Gerald J. Marks, M.D., Jewish Exponent, April 29, 1999, p. 60, 61.

“Maverick Doctor Knows That Change Is Good.” Article profiling Gerald J. Marks, M.D. and his career, Hospital and Healthcare News, October 1999, p. 10.

“Mont Clare Man Freed by Surgery.” Article featuring Gerald J. Marks, M.D., The Phoenix, November 24, 1999, p. D6.

Images Along the Way: A Surgeon’s International Journey, Volume III. Calendar created by Gerald J. Marks, M.D. for Ethicon Endo-Surgery, Johnson & Johnson, 2000.

As Director of the International Network of Comprehensive Rectal Cancer Centers (INCRCC) invited to address a task force of the National Surgical Adjuvant Breast and Bowel Project (NSABP) to help develop a national rectal cancer study. NSABP Headquarters, March 6, 2000, Pittsburgh, Pennsylvania.

SAGES 20-Year History. Exhibit tracing the history of the Society of American Gastrointestinal Endoscopic Surgeons and contributions of the society’s founding and first president, Gerald J. Marks, M.D. SAGES Annual Scientific Meeting, March 29 to April 1, 2000, Atlanta, Georgia.

Honorary President, 7th World Congress of Endoscopic Surgery, sponsored by the Endoscopic and Laparoscopic Surgeons of Asia (ELSA) and the International Federation of Societies of Endoscopic Surgeons (IFSES), Singapore, June 1 to June 4, 2000.

Vice President, Presidential Honorary Committee, 8th International Congress of the European Association for Endoscopic Surgery (EAES), Nice, France, June 28 to July 1, 2000.

MEDALS
Drexel University International Forum, Medal for International Excellence, March 6, 1994. Chinese Association for Endoscopic Surgery, Appreciation Medal, June 20, 1994.

Allegheny University of the Health Sciences, Edgar J. Deissler Professor of Surgery Medal, May 30, 1996.

Italian Surgical Society, Recognition Medal, Rome, Italy, October 13, 1996.

Distinguished Service Medal, University of Milan, Milan, Italy, October 17, 1996.

VIDEO TAPE PRODUCTION (offered for CME Credits)

Video of TATA Procedure (Transanal Abdominal Transanal Radical Proctosigmoidectomy with Coloanal Anastomosis Following High-Dose Radiation for the Very Low-Level Rectal Cancer). Taping by Vision Associates, Inc. at Allegheny University Hospital, Philadelphia, Pennsylvania, December 16, 1996. Video taping sponsored by Glaxo.

Video of CATS Procedure (Combined Abdominal Transsacral). Taping by Ciné-Med at Allegheny University Hospital, Philadelphia, Pennsylvania, January 16, 1997.

Video of TATA Procedure (Transanal Abdominal Transanal Radical Proctosigmoidectomy with Coloanal Anastomosis Following High-Dose Radiation for the Very Low-Level Rectal Cancer). Taping by Ciné-Med at Allegheny University Hospital, Philadelphia, Pennsylvania, January 23, 1997.

Video of Innovative Options in Rectal Cancer Management, an international consensus-type meeting. Taping by Ciné-Med at Four Seasons Hotel, Philadelphia, Pennsylvania, May 19-20, 1997.

CD-ROM PRODUCTION

CD-ROM of Innovative Options in Rectal Cancer Management, an international consensus-type meeting. Produced by Ciné-Med at Four Seasons Hotel, Philadelphia, Pennsylvania, May 19-20, 1997.

RESEARCH PROJECTS AND GRANTS:

Investigator: Study of Doxycycline in the Treatment of Surgical Soft Tissue Infections. Philadelphia General Hospital, l967-69.

Investigator: Clinical Study of Non-Healing Ulcers of the Lower Extremity. Philadelphia General Hospital, l968-70. Investigator: Study of Clinical Effectiveness of IV Doxycycline: Treatment and Prevention of Surgical Infections Originating in the GI Tract, l973-74.

Co-Investigator with Simon Kramer, M.D. et al: Study of Basic and Clinical Radiation Therapy Research. Research and Clinical Radiation Therapy Center Grant Funded by National Cancer Institute, Jefferson Medical College and Thomas Jefferson University Hospital, l975-1989.

Co-Director with Worth Boyce, M.D.: Flexible Fiberoptic Colonoscopy: A Multidisciplinary Symposium (Jefferson Medical College) Philadelphia, Pennsylvania, September l3-l4, l974.

Co-Director with Worth Boyce, M.D.: Flexible Fiberoptic Colonoscopy: A Multidisciplinary International Symposium (Jefferson Medical College) Philadelphia, Pennsylvania, September 23-24, l976.

Developer: Latex Colon Model for Teaching Flexible Fiberoptic Colonoscopy and Sigmoidoscopy. Patent awarded l980.

Principal Investigator with H. Whitney Boggs, Jr., M.D., Alejandro Castro, M.D., Byron Gathright, M.D., Eugene Salvati, M.D., and John Ray, M.D. Prospective Cooperative Comparative Study of the Clinical Effectiveness of Rigid and Flexible Fiberoptic Sigmoidoscopy in the Surgeon's Office. Funded by American Cytoscope Makers, Inc.

Principal Investigator: Histopathologic Effects of Infra-red Contact Coagulation in the Viscera of the Dog. Funded by the Kapnek Charitable Trust, Jefferson Colorectal Surgical Fund, and the Messerschmitt-Bolkow, Blohm Company.

Co-Investigator with Simon Kramer, M.D. and Mohammed Mohiuddin, M.D.: The Selective Sandwich Technique and Full Dose Adjunctive Radiation Therapy for Rectal Cancer. Funded by the Kapnek Charitable Trust, Jefferson Colorectal Surgical Fund and the National Cancer Institute, 1976-1986.

Co- Investigator: Randomized Trial of Open Colectomies Versus Hand-Assisted Laparoscopic Colectomies with Intromit. Sponsored by MedTech Limited, Dublin, Ireland. 1996 - 1998.

Principal Investigator: Evaluation of the Efficacy, the Safety and the Tolerability of R093877 (Enterokinetic) Given Subcutaneously in Patients Undergoing Elective Partial Colectomies. Sponsor: Janssen Research Foundation. 1997 - Present.

Co-Investigator: Phase III Prospective Randomized Trial Comparing Laparoscopic-Assisted Colectomy Versus Open Colectomy for Colon Cancer, National Surgical Adjuvant Breast and Bowel Project/National Cancer Institute. 1997 - Present.

Co-Investigator: A Clinical Trial to Evaluate the Worth of Preoperative Multimodality Therapy (5FU and RTX) in Patients with Operable Carcinoma of the Rectum. 1998 - Present.

Co-Investigator: Prospective Randomized Trial on the Treatment of Rectal Cancer in T1 G2-3 and T2 G1-3 N0 M0 Patients: Preoperative Radiochemotherapy and Local Excision Versus Anterior Resection or Abdominoperineal Resection. 1998 - Present.

Co-Investigator: Detection of Cancer Cells in Peripheral Blood of Patients with Colorectal Cancer (Immunicon Corporation). 1999 - Present.

MEDICAL SOCIETY MEMBERSHIPS AND APPOINTMENTS:

American Cancer Society, Fellow, l953-54
Service Committee Member, Philadelphia Division

American College of Surgeons, Fellow, l965
Regional Committee on Trauma, l969-73
Committee on Applicants for District l, Pennsylvania East, l977-1990 Representative, Board of Governors, 1983 - 1987

American Medical Association, l957 to Present

American Society of Colon and Rectal Surgeons,
Affiliate Member, l970
Associate Member, l972 - Fellow, l978
Co-Chairman, Committee on Standards of Training and Practice in Colonoscopy, l973-74
Member, Awards Committee, 1979
Trustee, Educational Endowment Fund, 1984
Chairman, Subcommittee on Cost Containment, Clinical Procedures Review Committee, 1984 - 1988
Chairman, Ad Hoc Committee, Comprehensive Study of Membership Requirements; 1985 - 1987
Chairman, Committee on Membership Requirements, 1986 - 1987
Vice President, 1989

Camden County Medical Society, l975

College of Physicians of Philadelphia, Fellow, l969

Colostomy-Ileostomy Rehabilitation Association, Inc., Philadelphia Division, l973
Medical Advisor, l973-Present

International Society of University Colon and Rectal Surgeons, l974 - present

Pan-American Medical Association, Diplomate l97l

Pan Pacific Surgical Association Pennsylvania Medical Society, l957 - present

Pennsylvania Society of Colon and Rectal Surgery
Associate Fellow, l967
Fellow, l972
Historian, l974-75
Vice President, l975-76
Program Chairman l975-80
President l980-8l
Executive Council, 1975 - 1990

Pennsylvania Society of Gastrointestinal Assistants, Medical Advisor, l979-80

Philadelphia County Medical Society, l957
Chairman, Sub-committee on Initial Emergency Care, l969
Member, Emergency Care Committee, l973-74
Chairman, Hospital Staff Activities Committee, l974-78
Alternate Delegate for Philadelphia County Medical Society to Pennsylvania Medical Society, l974-l978
Chairman, Strittmatter Award Committee 1983
Co-Chairman, Council of Presidents of Medical Staffs, 1984
Member, Medical Legal Committee 1984
Delegate to State Society, 1984
Chairman, Publications Committee, l984 - present
Chairman, Public Affairs Committee, l984 - present
Director, Board of Directors
Vice President, 1986-87, 1987-88

Philadelphia Academy of Surgery, l970
Council Member. 1986 - 1990

Northeastern Proctologic Society, l970-78

Professional Standards Review Organization, Task Force on Norms: Member,
Committee on Recruitment, (Standards and Criteria), l974-75

National Foundation for Ileitis and Colitis, Philadelphia Division, l973-Present

Member, Scientific Advisory Board, l973-Present

Northeast Society of Colon and Rectal Surgeons,

President, l981-1983 Society for Surgery of the Alimentary Tract, l974 - present

American Society of Gastrointestinal Endoscopy, l974 - present
Committee for Standards of Training and Practice, l976-78
Membership Committee, l978-80

Society American Gastrointestinal Endoscopic Surgeons
Founding President, l980 - present
Member Board of Governors, l980 - present
Chairman, International Relations Committee, 1986 - present
Chairman, Corporate Liaison Committee, 1986 - present
Program Committee, 1989-90
Board Member, SAGES Education and Research Foundation, 1999 - present
Member, Cancer and Leukemia Group B

Collegium Internationale Chirurgiae Digestivae (U.S. Section), l980

The Royal Society of Medicine (Affiliate Membership) (London), l98l

Eastern Surgical Society, April l982

Association of Colon and Rectal Residency Program Directors,Affiliate Member, l983

Member, Executive Committee of the Alumni Association, Jefferson Medical College, l963 - present
Alumni Achievement Award Committee, 1987-1988, 1988-1989, 1989-1990

Chairman, Colorectal Health Check Professional Education Subcommittee, American Cancer Society, l984

Member, American Society of Clinical Oncology, l985 Member,
Committee to Explore Formation of Philadelphia Chapter of American College of Surgeons, 1986.

Council Member, Philadelphia Metropolitan Chapter American College of Surgeons, 1986 - present.

International Federation of Societies of Endoscopic Surgeons (IFSES)
Chairman, Coordinating Council, Fourth World Congress of Endoscopic Surgery, Kyoto, Japan, June 16-19, 1994.
Member, The Society of Surgical Oncology, January 2000 to Present.

SCIENTIFIC EXHIBITS:

Non-Healing Ulcers of the Extremities. Clinical Meeting of the American Medical Association, November l966.

Ibid. The Chicago Medical Society Annual Clinical Conference, Chicago, Illinois, February l968. Third Award.

Ibid. Alumni Postgraduate Convention, Loma Linda University, California, April l968.

Ibid. The American College of Surgeons, Clinical Congress, Atlantic City, New Jersey, October l968.

Ibid. Scientific Exhibit, Interstate Postgraduate Medical Association of North America, Pittsburgh, Pennsylvania, November l968. Flexible

Fiberoptic Colonoscopy in the Total Management of the Patient with Colorectal Neoplasia. Digestive Disease Week, Las Vegas, Nevada, May 2l-27, l978.

Ibid. American Society of Colon and Rectal Surgeons, San Diego, California, June ll-l5, l978.

Ibid. American College of Gastroenterology, Denver, Colorado, September 25-27, l978.

Ibid. American College of Surgeons, San Francisco, California, October l5-20, l978.

Ibid. Royal College of Physicians and Surgeons of Canada, Montreal, Quebec, February 6-8, l979.

Ibid. Southeastern Surgical Congress, Bal Harbour, Florida, March l8-22, l979.

Ibid. Medical Society of New Jersey, Atlantic City, New Jersey, May l2-l4, l979.

The Comparative Clinical Effectiveness of Rigid and Flexible Fiberoptic Sigmoidoscopy: Results of a Cooperative Study. Digestive Disease Week, American Society of Gastrointestinal Endoscopy, New Orleans, Louisiana, May l8-26, l979.

Ibid. American College of Surgeons, Chicago, Illinois, October 2l-26, l979.

Ibid. Southern Medical Association, Las Vegas, Nevada, November 5-7, l979.

Ibid. Second International Colonoscopy Congress, Bal Harbour, Florida, March 5-9, l980.

Ibid. Medical Society of the State of New York, Port Chester, New York, April 25-27, l980.

Ibid. American Society of Colon and Rectal Surgeons, Hollywood Florida, May ll-l6, l980.

Ibid. American Academy of Family Physicians, New Orleans, Louisiana, October 6-9, l980.

PUBLICATIONS:

Marks G. Accumulative Effect of Rapid and Explosive Decompression upon Pulmonary Function. Abstract, American Physiological Society, September l952

Marks G. Effects of Intermittent Positive-Negative Pressure Breathing on Pulmonary Ventilation and the Cardiovascular System. Abstract, American Physiological Society, September l952.

Marks G. Performance Evaluation of the Seeler Resuscitator. WADC Technical Report, 53- 453, USAF, l952.

Marks G. Evaluation of Pulmonary Function after Rapid and Explosive Decompression. JAMA, l56, November l954.

Marks G. The Comparative Effectiveness of Cocaine and Dimethisoquin Ointments in Anal Pain. Clinical Medicine, IV, May l957.

Marks G, Mervine TB. Experiencia Clinica con Doxiciclina en el Tratamiento Quirurgico de las Infeccones de los Tejindos Blandos. Simposio International, Nuevo Recurso en Antibioticoterapia Doxiciclina, Academia Nacional de Medicina, l4 y l5 de Junio de l967, Buenos Aires.

Marks G. Interdisciplinary Panel on Polypoid Disease of the Colon (C-72-PR3). American College of Surgeons Clinical Congress, San Francisco, California, October l972.

Marks G, Chase WV, Mervine TB. The Fatal Potential of Fistula in Ano with Abscess: Analysis of Eleven Deaths. Diseases of the Colon and Rectum, l6(3):224, May-June l973.

Marks G, Moses ML. The Clinical Application of Flexible Fiberoptic Colonoscopy. Surgical Clinics of North America, 43(3):735, l973.

Marks G. Electrosurgical Scissor-Type Polyp Forceps for the Flexible Fiberoptic Colonoscope: A New Instrument. Diseases of the Colon and Rectum, l6:325, July-August l973.

Marks G. Rectal Reconstruction by the Combined Abdominotranssacral Approach. Diseases of the Colon and Rectum, l6:378, September-October l973.

Marks G. Technique of Fiberoptic Colonoscopy and Polypectomy, Interdisciplinary Panel Discussion (C73-PRl). American College of Surgeons, 59th Clinical Congress, October l5-l9, l973.

Marks G. Method of Sphincter Preservation in the Surgery of Cancer of the Rectum by the Combined Abdominotranssacral Approach (C73-PGl2). Postgraduate Course on Proctology. American College of Surgeons, 59th Clinical Congress, October l5-l9, l973.

Marks G, Mervine TB. Clinical Experience with Doxycycline in the Treatment of Surgical Soft-Tissue Infections. Current Therapeutic Research, l6:424, l974.

Marks G. Flexible Fiberoptic Colonoscopy: A Guide for Its Use in the Management of Diseases of the Colon. JAMA, 228:l4ll, l974.

Marks G. The Use of Flexible Fiberoptic Colonoscopy in the Diagnosis and Management of Colonic Diseases. Boletin, Asociacion Medical de Puerto Rico, 66: l34, l974.

Marks G. Operative Colonoscopy: A Current Status Appraisal. Diseases of the Colon and Rectum, l7:754, l974.

Marks G. Practical Application of Fiberoptic Colonoscopy in the Management of Colonic Disorders. Pennsylvania Medicine, 78:55, l975.

Marks G, Rodgers JF, Moses ML. Clinical Effectiveness of Intravenous Doxycycline: Treatment and Prevention of Surgical Infections of the Gastrointestinal Tract. Current Therapeutic Research, l8:460, l975.

Sandler C, Libshitz HI, Marks G. Pneumoperitoneum, Pneumomediastinum, and Pneumopericardium Following Dental Extraction. Diagnostic Radiology, p.540, June l975.

Marks G. Combined Abdominotranssacral Reconstruction of the Radiation Injured Rectum. American Journal of Surgery, l3l:54, January l976.

Marks G. Diagnostic Modality Update: Colonoscopy, Interdisciplinary Panel Discussion (C76-CR2). American College of Surgeons, 62nd Clinical Congress, October l5, l976.

Marks G. Colonoscopic Management of Polypoid Disease of the Colon: A Surgeon's Viewpoint. New York State Journal of Medicine, 78:l062-l065, June l978.

Marks G. Polyposis Syndromes. 078-CR2-0642. American College of Surgeons, San Francisco, California, October l978.

Mohiuddin M, Dobelbower RR, Rualba CT, Kramer S, Marks G. A Selective Sandwich Technique of Adjuvant Radiotherapy in the Treatment of Rectal Carcinoma: A Preliminary Experience. Diseases of the Colon and Rectum, 22:l-4, l979.

Cooper HS, Patchefsky AS, Marks G. Adenomatous and Carcinomatous Changes Within Hyperplastic Colonic Epithelium. Diseases of the Colon and Rectum, 22:l52-l56, l979.

Marks G, Boggs HW, Castro AF, Gathright JB, Ray JE, Salvati E. Sigmoidoscopic Examinations with Rigid and Flexible Fiberoptic Sigmoidoscopes in the Surgeon's Office: A Comparative Prospective Study of Effectiveness in l,0l2 Cases. Diseases of the Colon and Rectum, 22:l62-l68, l979.

Marks G. A Colon Model for Teaching Flexible Fiberoptic Colonoscopy. Gastrointestinal Endoscopy, 25:l42-l43, l979.

Cooper HS, Patchefsky AS, Marks G. Cloacogenic Carcinoma of the Anorectum in Homosexual Men: An Observation of Four Cases. Diseases of the Colon and Rectum, 22:557-558, l979.

Marks G. Guidelines for use of Flexible Fiberoptic Colonoscopy in Management of Patients with Colorectal Neoplasia. Diseases of the Colon and Rectum, 22:302-305, l979.

Marks G. Colorectal Cancer Detection: Questions and Answers. JAMA, 244:603, l980.

Scotti DM, Leiber C, Hur G, Marks G. Ruptured Inferior Gluteal Artery Aneurysm with Exsanguinating Rectal Hemorrhage Controlled by Transcatheter Coil Embolization. Diseases of the Colon and Rectum, 23:3l3, l980.

Marks G. Facing the Challenge of the Radiation-Injured Intestine. American College of Surgeons, #0832, (C80-PGl2), CliniTape, November l980.

Mohiuddin M, Dobelbower RR, Kramer S, Marks G. Adjuvant Radiotherapy with Selective Sandwich Technique in Treatment of Rectal Cancer: Results of a Continuing Study. Diseases of the Colon and Rectum, 24:76, l98l.

Rosato FE, Marks G. Changing Site Distribution Patterns of Colorectal Cancer at Thomas Jefferson University Hospital. Diseases of the Colon and Rectum, 24:93, l98l.

Marks G. Flexible Fiberoptic Colonoscopy and Flexible Fiberoptic Sigmoidoscopy in the Management of Colorectal Neoplasia. Estratto da Minerva Chirurgica, 36:23, l98l.

Mohiuddin M, Kramer S, Marks G, Dobelbower RR. Combined Pre- and Postoperative Radiation for Carcinoma of the Rectum. International Journal of Radiation Oncology Biology Physiology, 8:l33-136, l981.

Marks G. Acute Anorectal Disorders in Critical Care Gastroenterology, Brady, P.G. and Nord, H.J. (Editors), Churchill Livingstone Publishers, New York, New York., p. 333-347, 1982.

Marks G, Mohiuddin M. The Surgical Management of the Radiation-Injured Intestine. Surgical Clinics of North America, 63:8l-96, February l983.

Marks G. Facing the Challenge of the Radiation Injured Intestine in Advances in Digestive Surgery and Endoscopy, p.20l-205, l983. Montori, A. (Editor) Rome, Italy.

Sperber M, Marks G, Mohiuddin M, Mapp E. Rectal Cancer: Extent of Disease and Radiotherapeutic Effects by Computed Tomography. Computerized Radiology, 7(4):209-2l4, l983.

Marks G, Mohiuddin M. Sphincter Preservation for Rectal Cancer and the Role of Full Dose Preoperative Radiation Therapy. International Journal of Radiation Oncology Biology and Physiology, 9, Supplement l:ll0, l983.

Mohiuddin M, Marks G, Kramer S, Pajak T. Adjuvant Radiation Therapy for Rectal Cancer. International Journal of Radiation Oncology, Biology, Physiology, 10:977-980, March 1984.

Derdel J, Mohiuddin M, Kramer S, Marks G. Is Dose/Time Fractionation Important in Treating Rectal Cancer? International Journal of Radiation Oncology, Biology, Physiology, 11:579-582, 1985.

Bralow S, Marks G. Radiation Injury to the Gut in Bockus Gastroenterology, 4th Edition, J. Edward Berk, M.D. (ed), W. B. Saunders Publishing Company, p. 2593-2599, 1985.

Mohiuddin M, Derdel J, Marks G, Kramer S. Results of Adjuvant Radiation Therapy in Cancer of the Rectum. Cancer, 55(2):350-353, January 1985.

Marks G, Mohiuddin M, Borenstein BD. Preoperative Radiation Therapy and Sphincter Preservation by the Combined Abdominotranssacral Technique for Selected Rectal Cancers. Diseases of the Colon and Rectum, 28(8):565-571, August 1985.

Marks G, Eisenstat T, Borenstein BD. Flexible Fiberoptic Sigmoidoscopy in Surgical Endoscopy. T. Dent, W. Strodel and J. Turcotte (ed), Yearbook Medical Publishers, Inc., Chicago, Illinois 1985.

Berk T, Friedman LS, Goldstein SD, Marks G, Rosato FE. Relapsing Acute Pancreatitis as the Presenting Manifestation of an Ampullary Neoplasm in a Patient with Familial Polyposis Coli. The American Journal Gastro., Vol. 80, No. 8, pp. 627-629, 1985.

Rifkin MD, Marks G. Transrectal Ultrasound as an Adjunct in the Diagnosis of Rectal and Extrarectal Tumors. Radiology, Vol. 157, pp. 499-502, 1985.

Marks G, Mohiuddin M, Borenstein BD. Preoperative Radiation Therapy and Sphincter Preservation by the Combined Abdominotranssacral Technique in Selected Rectal Cancers in Colorectal Tumors. O. Beahrs, G. Higgins, J. Weinstein (ed), J.B. Lippincott Company, Philadelphia, Pennsylvania, 1986.

Rifkin MD, McGlynn E, Marks G. Endorectal Sonographic Prospective Staging of Rectal Cancer. Scandinavian Journal of Gastroenterology, Vol. 21, No. 123, pp. 99-103, 1986.

Fegiz G, Bezzi M, Ramacciato G, Marks G, Indinnimeo M, Gualdi G, Di Biasi C, Angelini L. Nuove Prospettive Nella Stadiazione Properatoria Dei Tumori Del Retto. Chirurgia Gastroenterologica, Supplement Vol. 20, No. 1, pp. 317-322, January-March, 1986.

Marks G., Borenstein BD. Complications of Flexible Fiberoptic Sigmoidoscopy: A Conceptual Approach. Surgical Endoscopy: Ultrasound and Interventional Techniques, Vol.1, No. 1, pp. 59-62, April, 1987.

Rifkin MD, Rosato FE, Branch HM, Foster J, Yang S, Barbot DJ, Marks G. Intraoperative Ultrasound of the Liver: An Important Adjunctive Tool for Decision Making in the Operating Room. Annals of Surgery, pp. 466-471, May, 1987.

Mohiuddin M, Marks G. High-Dose Preoperative Radiation and Sphincter Preservation in the Treatment of Rectal Cancer. International Journal of Radiation Oncology, Biology, Physiology, Vol. 13, pp. 839-842, June, 1987.

Marks G, Mohiuddin M, Goldstein S. Sphincter Preservation for Cancer of the Distal Rectum Utilizing Full Dose Preoperative Radiation and Special Surgical Techniques in Lecture Book #1: "1988 Surgical Updating/First World Postgraduate Surgical Week of the University of Milan and XXVI World Congress of the International College of Surgeons." M. Montorsi and P. Granelli (ed), Monduzzi Editore, Bologna, Italy, July 1988. (abstract)

Marks J, Marks G, Rifkin M, Mohiuddin M. Evaluation of Endorectal Sonography, Computerized Tomography and Digital Examination in the Prospective Staging of Rectal Cancer in Surgical Endoscopy, Ultrasound and Interventional Techniques. Manegold, B.C., et al (eds), Springer International Vol. 2, No. 2, p. 122, #83a, June, 1988. (abstract)

Marks G, Mohiuddin M. Expert Commentary on "Failure and Survival After Surgical Resection for Cancer of the Rectosigmoid and Rectum" (abstract) by Minsky, B.D., et al, in Colon and Rectal Surgery Outlook. Schrock, T.R. (ed), Quality Medical Publishing, Inc., St. Louis, MO, Vol. 1, No. 6, p. 2, July 1988.

Marks G, Mohiuddin M, Borenstein B. High Dose Preoperative Radiation and Sphincter Preservation Surgery for Cancer of the Distal Rectum. Schumpert Medical Quarterly, Vol. 7, No. 1, pp. 41-45, August 1988.

Marks G, Mohiuddin M, Goldstein SD. Sphincter Preservation for Cancer of the Distal Rectum Using High Dose Preoperative Radiation. International Journal of Radiation Oncology, Biology, Physiology, Vol. 15, pp. 1065-1068, 1988.

Mohiuddin M, Marks G. Cancer of the Rectum in Therapeutic Radiology, Second Edition. C. Mansfield (ed), Elsevier Science Publishing Co., Inc., New York, New York, 1989.

Rifkin MD, Ehrlich SM, Marks G. Staging of Rectal Carcinoma: Prospective Comparison of Endorectal US and CT. Radiology, Vol. 170, pp. 319-322, 1989.

Marks G. Management of a 3-cm Cecal Polyp and of a Large Rectal Villous Tumor in Common Problems in Cancer Surgery. Wanebo, H.J. (ed.), Year Book Medical Publishers, Inc., Chicago, IL, p. 52-55. 1990.

Marks G. The Surgeon as Endoscopist. Surgical Clinics of North America 1989;69: 1123-1127.

Marks G. Preoperative Irradiation and Sphincter Preservation for Rectal Cancer. CME tape, Audio-Digest, Gen Surg 37:05, Mar 1990.

Marks G, Mohiuddin M. Radiation Enteritis and Colitis in Current Therapy in Colon and Rectal Surgery. Victor W. Fazio (ed.), B.C. Decker, Inc. Toronto/Philadelphia, 377-383, 1990.

Marks G, Mohiuddin M, Masoni L, et al. High-Dose Preoperative Radiation and Full- Thickness Local Excision: A New Option for Patients with Select Cancers of the Rectum. Diseases of the Colon and Rectum, 1990:33; p. 735-739.

Marks G, Mohiuddin M, Eitan A, et al. Sphincter Preservation Surgery for Rectal Cancer Utilizing High Dose Preoperative Radiation: The Thomas Jefferson University Hospital Experience. Lyon, Lyon Chirurgical (Special Edition) French Surgical Journal, 1991.

Mohiuddin M, Marks G. High-Dose Preoperative Irradiation for Cancer of the Rectum, Int. J. Radiation Oncology Biol. Phys., 1990: 20; p. 37-43.

Herlyn D, Andrea B, Kane M, et al. Anti-Idiotype Cancer Vaccines: Pre-clinical and Clinical Studies. in vivo 1991:5;615-624.

Marks G, Mohiuddin M, Eitan A, et al. High-Dose Preoperative Radiation and Radical Sphincter-Preserving Surgery for Rectal Cancer. Arch Surg 1991;126:1534-1540.

Marks G, Mohiuddin M, Rakinic J. New Hope and Promise for Sphincter Preservation in the Management of Cancer of the Rectum. Seminars in Oncology 1991;18:388-398.

Mohiuddin M, Marks G. Adjuvant Radiation Therapy for Colon and Rectal Cancer. Seminars in Oncology 1991;18:411-420.

Tobin RL, Mohiuddin M, Marks G. Preoperative Irradiation for Cancer of the Rectum With Extrarectal Fixation. Int J Radiation Oncol Biol Phys 1991;21:1127-1132.

Marks G, Mohiuddin M, Eitan A, et al. High-Dose Preoperative Radiation and Radical Sphincter-Preservation Surgery for Rectal Cancer. Archives of Surgery 1991;126:1534-1540.

Marks G, Mohiuddin M, Masoni L, et al. High-Dose Preoperative Radiation Therapy as the Key to Extending Sphincter Preservation Surgery for Cancer of the Distal Rectum. Surgical Oncology Clinics of North America, 1992;1:71-86.

Mohiuddin M, Marks, G. Patterns of Recurrence Following High-Dose Preoperative Radiation and Sphincter-Preserving Surgery for Cancer of the Rectum. Dis Colon Rectum 1993;36:117-26.

Marks G, Mohiuddin M, Masoni L. The Reality of Radical Sphincter Preservation Surgery for Cancer of the Distal 3 cm of Rectum following High-Dose Radiation. Int. J. Rad Oncol. Biol. Phys., Nov. 1993;27:779-783.

Marks G, Mohiuddin M, Bannon JP. High-Dose Preoperative Radiation in Expanding Sphincter Preserving Options for Distal Rectal Cancer, Surgery of the Colon, Rectum and Anus. Mosby Year Book, Inc. St. Louis, Mo. September, 1993.

Ahmad N, Marks G, Mohiuddin M. High-Dose Preoperative Radiation for Cancer of the Rectum: Impact of Radiation Dose on Patterns of Failure and Survival. Int. J. Radiation Oncology Biol. Phys., 1993;27:773-778.

Mohiuddin M, Ahmad N, Marks G. A Selective Approach to Adjunctive Therapy for Cancer of the Rectum. Int. J. Radiation Oncology., 1993;27:765-772.

Mohiuddin M, Lingareddy V, Rakinic J, Marks G. Reirradiation for Rectal Cancer and Surgical Resection After Ultra High Doses. Int. J. Radiation Oncology Biol. Phys., 1993;27:1159-1163.

Marks G, Mohiuddin M, Bannon JP. High-Dose Preoperative Radiation in Expanding Sphincter-Preserving Surgical Options for Distal Rectal Cancer. Colorectal Cancer, Harold J. Wanebo, Ed. Mosby Year Book, Inc., St. Louis, MO, 1993, 587-596.

Chen E, Mohiuddin M, Brodovsky H, Fishbein G, Marks G. Downstaging of Advanced Rectal Cancer Following Combined Preoperative Chemotherapy and High-Dose Radiation. Int. J. Radiation Oncology Biol. Phys., 1994; 30, No. 1:169-175.

Herrera L, Sorrentino J, Brown M, Marks G. Surgery for Advanced Primary and Recurrent Colorectal Cancer. Pelvic Surgery and Treatment for Cancer, Mosby Year Book, Inc., St. Louis, MO. 1994; 16:229-242.

Marks G, Bannon JP, Zhou J. Radical Surgery II - Coloanal Anastomosis with Radical Proctosigmoidectomy. Cancer of the Colon, Rectum, and Anus. Alfred M. Cohen, McGraw- Hill, 1994.

Marks G, Marks J. Anoscopy and Flexible Fiberoptic Sigmoidoscopy: Evaluation of the Distal 50 cm of Colorectum. Endoscopic Surgery, F. L. Green and J. L. Ponsky. W. B. Saunders Co., May 1994.

Mohiuddin M, Lingareddy V, Marks G. Long-Term Results of “Selective Sandwich” Adjunctive Radiotherapy for Cancer of the Rectum. American Journal of Clinical Oncology, 1994; 17(3):264-268.

Lingareddy V, Mohiuddin M, Marks G. The Importance of Patient Selection for Adjunctive Postoperative Radiation Therapy for Cancer of the Rectum. Cancer, 1994; 73(7):1805-1810.

Mohiuddin M, Marks G, Bannon J. High-Dose Preoperative Radiation and Full-Thickness Local Excision: A New Option for Selected T3 Distal Rectal Cancers. International Journal of Radiation Oncology, Biology, Physics, November 15, 1994; 30(4):845-849.

Bannon JP, Marks G, Mohiuddin M, Rakinic J, Zhou J, Nagle D. Radical and Local Excisional Methods of Sphincter-Sparing Surgery After High-Dose Radiation for Cancer of the Distal 3 cm of the Rectum. Annals of Surgical Oncology, 1995; 2(3):221-227.

Bannon JP, Marks G, Mohiuddin M, Rakinic J, Nong-Zhou J, Nagle D. Radical and Local Excisional Methods of Sphincter-Sparing Surgery After High-Dose Radiation for Cancer of the Distal 3 cm of the Rectum. Abstract published in European Journal of Surgical Oncology, 1995; 21(3):331-332.

Marks G, Bannon JP, Nong-Zhou J. Radical Surgery -- Coloanal Reconstruction. Cancer of the Colon, Rectum, and Anus, Alfred M. Cohen and Sidney J. Winawer, eds. McGraw-Hill, 1995.

Marks G, Marks J. Response to Dukes C2 Colon Cancer: What Is Appropriate Follow-Up? Seminars in Oncology, 1995; 22(3):xix-xx, xxv-xxvi, xxix, xxxii.

Somasundaram R, Zaloudik J, Jacob L, Benden A, Sperlagh M, Hart E, Marks G, Kane M, Mastrangelo M, Herlyn D. Induction of Antigen-Specific T and B Cell Immunity in Colon Carcinoma Patients by Anti-Idiotypic Antibody. Journal of Immunology, September 15, 1995; 155(6):3253-3261.

Bannon JP, Marks G, Mohiuddin M, Rakinic J, Nong-Zhou Jian, Nagle D. Radical and Local Excisional Methods of Sphincter-Sparing Surgery After High-Dose Radiation for Cancer of the Distal 3 cm of the Rectum. Abstract published in 1996 Year Book of Surgery, Timothy Eberlein, M.D., ed. Mosby-Year Book, Inc., Chicago, IL, 1996.

Mohiuddin M, Regine W, Marks G. Prognostic Significance of Tumor Fixation of Rectal Carcinoma: Implications for Adjunctive Radiation Therapy. Cancer, August 15, 1996; 78(4):717-722.

Marks G. Commentary on Sphincter-Preserving Operations for Rectal Cancer: Current Surgical Approaches and Preoperative Multi-Disciplinary Treatment. Oncology, November 1996; 10(11):1690-1691.

Marks G, Bannon JP, Marks JH. Transanal-Abdominal-Radical Proctosigmoidectomy with Coloanal Anastomosis for Distal Rectal Cancer. Mastery of Surgery, Vol. II, 3rd edition. Lloyd Nyhus, M.D., Robert Baker, M.D., Josef Fischer, M.D., eds. Little, Brown and Company, Boston, MA, 1997.

Marks G, Marks J, Mohiuddin M. Preoperative Radiation and Resection with Coloanal Anastomosis for Low-Lying Rectal Cancer. Surgery for Gastrointestinal Cancer: A Multi- Disciplinary Approach. Harold J. Wanebo, M.D., ed. Lippincott-Raven, Philadelphia, PA, 1997.

Cuschieri A, Ferreira E, Goh P, Idezuki Y, Maddern G, Marks G, Stiegmann G, Taylor B. Guidelines for Conducting Economic Outcomes Studies for Endoscopic Procedure. Surgical Endoscopy, March 1997; 11(3):308-314.

Westcott CJ, Gardner R, Marks G. Aggressive Angiomyxoma Presenting as a Pelvic Floor Hernia. Surgery, November 1997; 122(5):969-972.

Mohiuddin M, Regine, W, Marks, G, Marks, J. High-Dose Preoperative Radiation and the Challenge of Sphincter-Preservation Surgery for Cancer of the Distal 2 CM of the Rectum. Int. J. Radiation Oncology Biol. Phys, 1998; 40(3):569-574.

Marks, G, Marks, J, Mohiuddin, M, Brady, L. Radical Sphincter Preservation Surgery with Coloanal Anastomosis Following High-Dose External Irradiation for the Very Low Lying Rectal Cancer in Recent Results in Cancer Research, Vol. 146. Schlag, P. (ed.), Springer, Berlin, Germany, 1998, p. 161-174.

PRESENTATIONS TO MAJOR SOCIETIES AND INSTITUTIONS:

Accumulative Effect of Rapid and Explosive Decompression upon Pulmonary Function. American Physiological Society, September l952.

Effects of Intermittent Positive-Negative Pressure on Breathing on Pulmonary Ventilation and the Cardiovascular System. American Physiological Society, September l952.

Ruptured Hepatic Artery Aneurysms: Report of Two Cases. Philadelphia Academy of Surgery, l963.

Anterior Tibial Compartment Syndrome. Philadelphia Academy of Surgery, l964.

Clinical Experience with Doxycycline in the Surgical Treatment of Soft Tissue Infections. International Symposium, New Research in Antibiotic Therapy with Doxycycline. National Academy of Medicine, June l4-l5, l967, Buenos Aires.

Rectal Prolapse Treated by Transsacral Fixation. American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February l969.

The Fistula-in-ano with Abscess: An Analysis of Eleven Deaths. Philadelphia Academy of Surgery, November l969.

The Fatal Face of Fistula-in-ano with Abscess: An Analysis of Eleven Deaths at the Philadelphia General Hospital. American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February l970.

Rectal Reconstruction by the Combined Abdominotranssacral Approach. Conjoint Meeting: New York Surgical Society and Philadelphia Academy of Surgery, Philadelphia, Pennsylvania, March l970.

Transsacral Rectal Fixation for the Treatment of Rectal Prolapse. American Proctologic Society, Hollywood, Florida, April l970.

Rectal Reconstruction by the Combined Abdominotranssacral Approach. American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February l97l.

Clinical Experience with a Flexible Fiberoptic Colonoscope. American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February l97l.

Unusual Methods in the Management of Difficult and Demanding Problems of the Colon and Rectum. American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February l972.

Transsacral Fixation for the Treatment of Rectal Prolapse. Philadelphia Academy of Surgery, Philadelphia, Pennsylvania, May l972.

Rectal Reconstruction by Combined Abdominal and Transsacral Approach. American Proctological Society, New York, New York, June l972.

Colostomy and Colonoscopy. Interdisciplinary Panel on Polypoid Disease of the Colon. American College of Surgeons, Clinical Congress, San Francisco, California, October l972.

Rectal Prolapse. Northeastern Proctologic Conference and Symposium, Marbella, Spain, November l972.

The Impact of Flexible Fiberoptic Colonoscopy and Polypectomy on Polypoid Disease of the Colon. Philadelphia Academy of Surgery, Philadelphia, Pennsylvania, December l972.

The Impact of Flexible Fiberoptic Colonoscopy and Polypectomy on Polypoid Disease of the Colon. American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February l973.

Method of Sphincter Preservation in the Surgery of Cancer of the Rectum by the Combined Abdominotranssacral Approach. Postgraduate Course on Proctology. American College of Surgeons, 59th Clinical Congress, Chicago, Illinois, October l5-l9, l973.

Determinants and Technique for Sphincter Preservation in Carcinoma of the Rectum. American College of Surgeons, Puerto Rico Chapter, 24th Clinical Congress, San Juan, Puerto Rico, February l974.

The Application of Flexible Fiberoptic Colonoscopy in the Management of Colonic Disorders. American College of Surgeons, West Virginia Chapter, White Sulphur Springs, West Virginia, May l974.

Fees and Third Party Attitudes. Fiberoptic Colonoscopy: A Multidisciplinary Symposium (Jefferson Medical College), Cherry Hill, New Jersey, September l3-l4, l974.

Carcinoma of the Rectum: Determinants for Sphincter Preservation by the Combined Abdominotranssacral Approach. Mexican Proctologic Society, Acapulco, Mexico, October 2l-23, l974.

Spectrum of Radiation Injury of the Bowel. American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February l9, l975.

Carcinoma of the Rectum: Determinants and Technique of Sphincter Preservation by the Combined Abdominotranssacral Approach. Joint Meeting: Texas Society of Colon and Rectal Surgeons, Mexican Society of Colon and Rectal Surgeons and Texas Medical Association, San Antonio, Texas, April 30, l975.

Sphincter Preservation in the Management of Carcinoma of the Rectum by the Combined Abdominotranssacral Technique. American Society of Colon and Rectal Surgeons, San Francisco, California, May 7, l975.

Radiation-Injured Rectum: Rectal Reconstruction by a Combined Abdominotranssacral Method. Society for Surgery of the Alimentary Tract. San Antonio, Texas, May 20, l975.

New Twists on Old Turns: A Colorectal Potpourri. American Society of Gastrointestinal Endoscopy, Postgraduate Course Faculty Member, Miami, Florida, January 28-February 4, l976.

Complications of Colonoscopy. American Society of Colon and Rectal Surgeons, New Orleans, Louisiana, May 4, l976.

Transsacral Rectal Fixation for the Treatment of Rectal Prolapse. Society for Surgery of the Alimentary Tract, Miami Beach, Florida, May 25-26, l976.

Combined Abdominotranssacral Method of Sphincter Preservation in Surgery of Benign and Malignant Lesions of the Rectum. International College of Surgeons, Cherry Hill, New Jersey, July 2, l976.

Subtle Complications of Colonoscopy and Colonoscopic Polypectomy. Flexible Fiberoptic Colonoscopy: A Multidisciplinary International Symposium (Jefferson Medical College), Cherry Hill, New Jersey, September 22-24, l976.

Diagnostic Modality Update: Colonoscopy. American College of Surgeons, 62nd Clinical Congress, Chicago, Illinois, October l5, l976.

Combined Abdominotranssacral Method of Sphincter Preservation for Benign and Malignant Surgical Lesions of the Rectum. Pan American Medical Association, Hollywood, Florida, October 27, l976.

Endoscopy of the Lower Gastrointestinal Tract. American Medical Association, 30th Clinical Convention, Philadelphia, Pennsylvania, December 4-7, l976.

Surgery of the Radiation-Injured Gut. American Society of Colon and Rectal Surgeons, Orlando, Florida, May 8-l2, l977.

Advanced Techniques in Colonoscopic Polypectomy: Management of Complications. American Society for Gastrointestinal Endoscopy, Toronto, Canada, May 23-27, l977.

Colonoscopic Management of Polypoid Disease of the Colon: A Surgeon's Viewpoint. Medical Society of the State of New York, Andersen Memorial Lecture, New York, New York, October 3, l977.

Technique and Application of the Combined Abdominotranssacral Approach to Anal Sphincter Preservation. American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February 2l-26, l978.

Reconstruction of the Radiation-Injured Rectum by the Combined Abdominotranssacral Method. Conjoint Meeting: New York Surgical Society and Philadelphia Academy of Surgery, Philadelphia, Pennsylvania, March l5, l978.

Transsacral Sling Fixation of Rectal Prolapse. American Society of Colon and Rectal Surgeons, San Diego, California, June ll-l5, l978.

Polyposis Syndromes. Moderator for Panel Discussion. American College of Surgeons, 64th Annual Clinical Congress, San Francisco, California, October 20, l978.

Facing the Surgical challenge of the Radiation-Injured Intestine. Piedmont Society of Colon and Rectal Surgeons, Sea Island, Georgia, March l5-l8, l979.

Comparative Effectiveness of Rigid and Flexible Fiberoptic sigmoidoscopy: A Prospective Cooperative Study of l,500 Cases - Phase II. ASGE Annual Meeting, New Orleans, Louisiana, May 23, l979.

The Management of Radiation-Injured Intestine. Lahey Clinic Surgical Course, Boston, Massachusetts, May 24, l979.

The Comparative Effectiveness of Rigid and Flexible Sigmoidoscopy in l500 Patients. Ibid. May 24, l979.

Sphincter Preservation with Adjunctive Radiotherapy. Ibid. May 24, l979.

Low Anterior Resection: Techniques and Pitfalls. Panel Discussant. Ibid. May 24, l979.

Flexible Fiberoptic Sigmoidoscopy Workshop. Ibid. May 24, l979.

Radiation Injuries. Discussant. American Society of Colon and Rectal Surgeons, Atlanta, Georgia, June 4, l979.

Technique and Full Application of the Combined Abdominotranssacral Method of Sphincter Preservation in Surgery of the Irradiated and Non-Irradiated Rectum. Joint Meeting: American Society of Colon and Rectal Surgeons and the Section of Proctology, Royal Society of Medicine, London, England, June l7-20, l979.

Guidelines for the Clinical Application of Flexible Fiberoptic Colonoscopy and Flexible Fiberoptic Sigmoidoscopy in the Management of Colorectal Neoplasia. Medical Pathology Institute, University of Milano, Milan, Italy, September l3, l979.

Guidelines for the Clinical Application of Flexible Fiberoptic Colonoscopy and Flexible Fiberoptic Sigmoidoscopy in the Management of Colorectal Neoplasia. Medical Clinic Institute, University of Milano, Milan, Italy, September l3, l979.

Guidelines for the Clinical Application of Flexible Fiberoptic Colonoscopy and Flexible Fiberoptic Sigmoidoscopy in the Management of Colorectal Neoplasia. National Cancer Institute, Milan, Italy, September l4, l979.

Guidelines for the Clinical Application of Flexible Fiberoptic Colonoscopy and Flexible Fiberoptic Sigmoidoscopy in the Management of Colorectal Neoplasia. Instituti Ospedalieri Di Mantova, Corso di Aggiornamento in Chirurgia Generale, Mantova, Italy, September l5, l979.

Technique and Full Application of the Combined Abdominotranssacral Method of Sphincter Preservation in Surgery of the Irradiated and Non-Irradiated Rectum. Policlinico Universita di Roma, Rome, Italy, September 2l, l979.

The Comparative Effectiveness of Rigid and Flexible Fiberoptic Sigmoidoscopy in the Setting of the Surgeon's Office: A Study of l800 Cases. American Osteopathic College of Proctology, Inc., Las Vegas, Nevada, October 7, l979.

The Combined Abdominotranssacral Method of Sphincter Preservation in Surgery of the Irradiated and Non-Irradiated Rectum. Ibid. October 7, l979.

Colonoscopy Surveillance in Patients with Colorectal Cancer. Northeastern Society of Colon and Rectal Surgeons Meeting. Dorado Beach, Puerto Rico, November l3, l979.

The Comparative Effectiveness of Rigid and Flexible Sigmoidoscopy in l800 Patients. Conjoint Meeting: Philadelphia Academy of Surgery and New York Surgical Society, Philadelphia, Pennsylvania, March l2, l980.

The Comparative Effectiveness of Rigid and Flexible Sigmoidoscopy in l800 Patients. Third European Postgraduate Course of Gastrointestinal Endoscopy. Rome, Italy, April l4, l980.

Colonoscopy and Flexible Fiberoptic Sigmoidoscopy in the Management of Colorectal Neoplasia. Ibid. Rome, Italy, April l4, l980.

Technique and Full Application of the Combined Abdominotranssacral Method of Sphincter Preservation in Surgery of the Irradiated and Non-Irradiated Rectum. Second International Symposium of Digestive Surgery and Endoscopy. Rome, Italy, April l6, l980.

Endoscopy in the Prevention, Diagnosis, and Postoperative Surveillance of Colorectal Cancer. Ordine dei Medici di Latina, Latina, Italy, April l8, l980.

Selective Sandwich Technique of Adjuvant Radiotherapy in the Treatment of Rectal Cancer. (Dr. M. Mohiuddin and Dr. G. Marks) American Radium Society, April 30, l980.

Sigmoidoscopic Examination with Rigid and Flexible Fiberoptic sigmoidoscopes in the Surgeon's Office: A Comparative Prospective Study. Society of Gastrointestinal Assistants, Snowbird, Utah, May l9, l980.

Closure of the Diverting Colostomy and Ileostomy: A Personal Experience with l00 Consecutive Cases. American Society of Colon and Rectal Surgeons, Hollywood, Florida, May l5, l980.

Flexible Fiberoptic Sigmoidoscopy Workshop. Ibid. May l5, l980.

Management of Premalignant and Malignant Rectal Polyps. Royal College of Physicians and Surgeons of Canada. Canadian Association of General Surgeons: Postgraduate Course, Ottawa, Canada, June 3, l980.

Flexible Fiberoptic Sigmoidoscopy Workshop. Ibid. June 3, l980.

Closure of the Diverting Colostomy and Ileostomy: A Personal Experience with l00 Consecutive Cases. Pennsylvania Society of Colon and Rectal Surgery. September l2, l980.

Closure of the Diverting Colostomy and Ileostomy: A Personal Experience with l00 Consecutive Cases. Brazilian Congress of Proctology, Rio de Janeiro, September 29, l980.

Technique and Full Application of the Combined Abdominotranssacral Method of Sphincter Preservation in Surgery of the Irradiated and Non-Irradiated Rectum. Ibid. September 29, l980.

The Comparative Effectiveness of Rigid and Flexible Sigmoidoscopy in l800 Patients. Ibid. October l, l980.

Facing the Challenge of the Radiation-Injured Intestine. Postgraduate Course in Colon and Rectal Surgery, 66th Clinical Congress, American College of Surgeons, October 22, l980.

"Snare or Resection." Ibid. October 24, l980.

Use of Silastic Gel Rectal Cushion in the Surgical Management of Rectal Prolapse. Pennsylvania Society of Colon and Rectal Surgery, Philadelphia, Pennsylvania, January 9, l98l.

Conjoint Meeting: New York Surgical Society and Philadelphia Academy of Surgery: Discussor of paper entitled, "Importance of Patient Selection in Local Treatment of Rectal Carcinoma" by B. S. Gingold, M.D., W. F. Mitty, Jr., M.D., M. Tadros, M.D., New York City, March ll, l98l.

Co-Chairman: Introduction to Flexible Fiberoptic Sigmoidoscopy: An Instructional Seminar with Practice Models. American College of Surgeons. New Orleans, Louisiana, April 2, l98l.

The Role of Flexible Fiberoptic Sigmoidoscopy in Surgical Practice. Ibid.

Polyps and Cancer: Colonoscopy. Symposium on New Techniques in Diagnostic and Interventional Radiology. Hospital of the University of Pennsylvania. Fairmont Hotel, Philadelphia, Pennsylvania, April 8, l98l.

Closure of Diverting Colostomy and Ileostomy: A Personal Experience with l00 Consecutive Cases. (Dr. R. A. Carabasi and Dr. G. Marks) Philadelphia Academy of Surgery, Philadelphia, Pennsylvania, May 4, l98l.

Total Colectomy and Supra-anal Ileoproctostomy by Combined Abdominal Transsacral Technique. (Dr. W. Quinones and Dr. G. Marks) The Pennsylvania Society of Colon and Rectal Surgery, Philadelphia, Pennsylvania, May 8, l98l.

Moderator, Symposium: Radiation Therapy for Rectal Cancer. American Society of Colon and Rectal Surgeons. Colorado Springs, Colorado, June 9, l98l.

Clinical Implications of a Comparative Study of Rigid vs. Flexible Sigmoidoscopy in 2500 Patients. Ibid. June l0, l98l.

Update of the Selective Sandwich Technique for Carcinoma of the Rectum at the Thomas Jefferson University Hospital. Philadelphia Society of Colon and Rectal Surgeons, Philadelphia, Pennsylvania, September ll, l98l.

A Colon Model for Teaching Flexible Fiberoptic Colonoscopy. Italian Society for Gastrointestinal Endoscopy, Turin, Italy, September 24-26, l98l.

The Practical Implications of a Comparative Prospective Study of Rigid and Flexible Fiberoptic Sigmoidoscopy in 2,827 Patients. Ibid.

Panel Moderator: Flexible Fiberoptic Colonoscopy. American College of Surgeons, San Francisco, California, October l4, l98l.

Adjunctive Radiation Therapy and Sphincter Preservation for Cancer of the Rectum. Colombia-Presbyterian Hospital, New York, October 27, l98l.

Rectal Cancer: Extent of Disease and Radiotherapeutic Effects as Determined by Computed Tomography. The Radiological Society of North America, 67th Scientific Assembly, Chicago, Illinois, November l5-20, l98l.

Radiation: Its Place in Colorectal Carcinoma. Annual Conference, The Northeastern Society of Colon and Rectal Surgeons, Casa de Campo, Santo Domingo, November l4-2l, l98l.

Endoscopic Hedonism. Ibid.

Radiation Update - Sandwich Technique. Ibid.

Flexible Fiberoptic Sigmoidoscopy: Its Role in the Management of the Surgical Patient. American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February l6-l7, l982.

Panel Moderator: Advances in Colorectal Surgery. Ibid.

Sphincter Preservation Following Full Dose Radiation Therapy for Rectal Cancer. Conjoint Meeting: New York Surgical Society and Philadelphia Academy of Surgery, Philadelphia, Pennsylvania, March l0, l982.

Clinical Application of Flexible Fiberoptic Sigmoidoscopy in the Management of the Surgical Patient. American College of Surgeons, l0th Annual Spring Meeting Seminar, Phoenix, Arizona, March 25, l982.

Transsacral Rectal Fixation for the Correction of Rectal Prolapse. Ohio Valley Colon and Rectal Surgical Society Meeting, Ohio State University, Columbus, Ohio, March 26-27, l982.

The Use of Two Modes of Adjunctive Radiation Therapy for Cancer of the Rectum. Ibid.

The Clinical Application of Flexible Fiberoptic Sigmoidoscopy in the Management of the Surgical Patients. Ibid.

Sphincter Preservation and Full Dose Preoperative Adjunctive Radiation Therapy for Rectal Cancer. Ibid.

The Teaching of Colonoscopy. Program Directors Colon and Rectal Surgery Workshop, Key Biscayne, Florida, April l4-l5, l982.

Panel Moderator: Early Detection of Colon Malignancy. American Society of Colon and Rectal Surgeons, 8lst Annual Meeting, San Francisco, California, May 2-6, l982.

Sphincter Preservation Following Two Model of Adjunctive Radiation Therapy for Cancer of the Rectum. Ibid.

The Use of the Flexible Fiberoptic Sigmoidoscope in the Management of the Surgical Patient. Ninth Biennial Congress of the International Society of University Colon and Rectal Surgeons, Munich, Germany, June 8-l0, l982.

Sphincter Preservation Following Full Dose Radiation Therapy for Rectal Cancer. Ibid.

Chairman: Motion Picture Film Session on Colorectal Surgical Technique. Ibid.

Panelist: Advances in Anal and Rectal Surgery. Ibid.

Adjunctive Radiation Therapy and Sphincter Preservation for Rectal Cancer. Centre Leon Berard (Cancer Center), Lyon, France, June l4, l982.

Full Dose Radiation Therapy in the Surgical Management of Rectal Cancer. First Annual Symposium, Ferguson Clinic, Grand Rapids, Michigan, August l2-l4, l982.

Making a Colostomy Closure a Safe Procedure. Ibid.

Use of the Flexible Fiberoptic Sigmoidoscope in the Management of the Surgical Patient. Ibid.

The Spectrum of Radiation Injury of the Intestines. Surgical Grand Rounds, University of Miami/Jackson Memorial Medical Center, Miami, Florida, October 7, l982.

Preoperative Radiation Therapy and Sphincter Preservation for Rectal Cancer, Video Presentation. American College of Surgeons, 68th Annual Clinical Congress, Chicago, Illinois, October 27-29, l982.

Panel Moderator: Alternatives to Stomas for Ulcerative Colitis. Ibid.

Preoperative Radiation Therapy and Sphincter Preservation for Rectal Cancer. Eastern Pennsylvania Chapter American College of Surgeons, Reading, Pennsylvania, November l0, l982.

Role of the Surgeon in Gastrointestinal Endoscopy. Ibid.

Full Dose Radiation Therapy and Resection for Colorectal Cancer. Northeastern Society of Colon and Rectal Surgeons Meeting, Captiva Island, Florida, November l6-l7, l982.

Safe Side of Colostomy Closure. Ibid.

Facing the Challenge of the Radiation-Injured Intestine. Society of Gastrointestinal Assistants, New Orleans, Louisiana, December 4, l982.

Approach to Polypoid Lesions of the Colon: Good Surgical Judgment. Seminar: Introduction to Gastrointestinal Endoscopy: A Course for Surgical Residents, The Mount Sinai Medical Center, Cleveland, Ohio, January 22, l983.

Flexible Fiberoptic Sigmoidoscopy. Ibid.

Splenic Abscess Associated with Strep Bovis: Septicemia and Colon Carcinoma. Discussant: Philadelphia Academy of Surgery, Philadelphia, Pennsylvania, February 7, l983.

Preoperative Full Dose Radiation Therapy and Sphincter Preservation for Rectal Cancer. Surgical Research Seminar, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, February l8, l983.

Sphincter Preservation Following Full Dose Radiation Therapy for Rectal Cancer. American College of Surgeons Meeting, Puerto Rico Chapter, San Juan, Puerto Rico, February 22, l983.

Panel Moderator: Carcinoma of the Colon and Rectum. Ibid.

Discussant: Mucosal Proctectomy Using the Ultrasound Scalpel. Conjoint Meeting: Philadelphia Academy of Surgery and New York Surgical Society, March 9, l983.

A Scheme for Selecting Operative Approaches to Benign Rectal Lesions. American College of Surgeons, llth Annual Spring Meeting, Washington, DC, April l3, l983.

Panel Moderator: Flexible Fiberoptic Sigmoidoscopy. Ibid.

Pathological Yields of Flexible Fiberoptic Sigmoidoscopy. Ibid.

The Use of Flexible Fiberoptic Sigmoidoscopy and Colonoscopy in the Management of the Surgical Patients. Third International Symposium of Digestive Surgery and Endoscopy (Universita Degli Studi Di Roma), Rome, Italy, April 26-29, l983.

Approach to Polypoid Lesions of the Colon: Good Surgical Judgment. Ibid.

Full Dose Preoperative Radiation Therapy and anal Sphincter Preservation in the Management of Rectal Cancer. Ibid.

Adjuvant Radiotherapy in Sphincter-Saving Surgery for Cancer of the Rectum. Florida Society of Colon and Rectal Surgeons, Hollywood, Florida, May 6, l983.

Advances in Colorectal Surgery. The John J. DeTuerk Lectureship, Methodist Hospital, Philadelphia, Pennsylvania, May 25, l983.

Histopathological Effect of Infrared Coagulation in Dogs. American Society of Colon and Rectal Surgeons, 82nd Annual Meeting, Boston, Massachusetts, June 8, l983.

Chairman: Gastrointestinal Endoscopy in Surgical Practice: State of the Art. An International Multidisciplinary Symposium, (Jefferson Medical College/Society of American Gastrointestinal Endoscopic Surgeons), Philadelphia, Pennsylvania, September l2-l3, l983.

Video Endoscopy - The Prototype and the Potential. Ibid.

Discussor: Flexible Fiberoptic Sigmoidoscopy. Ibid.

Sphincter Preservation following Full Dose Radiation Therapy for Rectal Cancer. National Symposium on Colorectal Tumors: Surveillance, Prevention, and Management (The George Washington University Medical Center), Arlington, Virginia, September 20, l983.

Sphincter Preservation for Rectal Carcinoma and Role of Full Dose Preoperative Radiation Therapy. Annual Meeting American Society of Therapeutic Radiologists, Los Angeles, California, October 5, l983.

Colonoscopy - A Surgical Specialty - Indications for Use and Pitfalls. American College of Surgeons, 69th Clinical Congress, Postgraduate Course Gastrointestinal Surgery, Atlanta, Georgia, October l8, l983.

Endoscopy and the Surgeon. Northeastern Society of Colon and Rectal Surgeons Meeting, Manua Kea, Hawaii, November l5-l6, l983.

Radiotherapy in Rectal Carcinoma -- An Update. Ibid.

The Radiation-Injured Intestine. American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February 2l, l984.

Distribution Density of 782 Colorectal Neoplasms Detected by Flexible Fiberoptic Sigmoidoscopy. Society American Gastrointestinal Endoscopic Surgeons: First Scientific Session, Philadelphia, Pennsylvania, April 8, l984.

Chairman: Gastrointestinal Endoscopy in Surgical Practice: State of the Art, II. An International Multidisciplinary Symposium, (Jefferson Medical College/Society of American Gastrointestinal Endoscopic Surgeons), Philadelphia, Pennsylvania, April 9-l0, l984.

Comprehensive Indications of Colonoscopy. Ibid.

Avoidance, Recognition, and Management of the Complications of Colonoscopy. Ibid.

Application of Flexible Fiberoptic Sigmoidoscopy in Surgical Practice. Ibid.

Preoperative Radiation Therapy and Sphincter Preservation for Rectal Cancer: Experience Update. Incontri di Aggiornamento della Cattedra di Patologica Chirurgica B dell'Universita di Palermo (Surgical Society of Rome), Palermo, Italy, April 30, l984.

Preoperative Radiation Therapy and Sphincter Preservation for Rectal Cancer: Experience Update. Riunione Scientifica E Corso di Aggiornamento, Chieti, Italy, April 26, l984.

Preoperative Radiation Therapy and Sphincter Preservation for Rectal Cancer: Experience Update. Societa Roman di Chirurgia, Rome, Italy, May 2, l984.

New Modalities in the Treatment of Hemorrhoids and Other Anorectal Disorders. Fourth Annual Advances in Gastroenterology, Atlantic City, New Jersey, June l6, l984.

Session Chairman: International Society of University Colon and Rectal Surgeons, l0th Biennial Congress, Strasbourg, France, September 2-6, l984.

How to Proceed when Endoscopically Removed Polyp, Thought to be Benign, is Found to be Malignant. Ibid.

Preoperative Radiation Therapy as the Key to Extending Sphincter Preservation in Rectal Cancer. Ibid.

Experience with Massive Hemorrhage from Radiation Proctitis. The Pennsylvania Society of Colon and Rectal Surgery, Philadelphia, PA, September 2l, l984.

Chairman, Management of Rectal Cancer: A Multidisciplinary Symposium, Philadelphia, Pennsylvania, October l9, l984.

Preoperative Radiation Therapy as the Key to Extending Sphincter Preservation in Rectal Cancer. Ibid.

Preoperative Radiation Therapy as the Key to Extending Sphincter Preservation in Rectal Cancer. St. Vincent's Hospital in conjunction with the American Cancer Society Symposium, New York, New York, October 3l, l984.

Preoperative Radiation Therapy and Sphincter Preservation for Selected Rectal Cancers. The Northeastern Society of Colon and Rectal Surgeons, Dorado Beach, Puerto Rico, November ll-l8, l984.

Brighter Prospects in the Management of Colorectal Cancer. Estelle Lasko Memorial Lecturer, l3th Annual Chester County Cancer Conference, West Chester, Pennsylvania, April l0, l985.

Colorectal Cancer: The Role of Surgery. Colorectal Cancer Symposium, Milleville Hospital, Milleville, New Jersey, April l7, l985.

Preoperative Radiation Therapy as the Key to Extending Sphincter Preservation and Preventing Local Recurrence in Rectal Carcinoma. American Society of Colon and Rectal Surgeons, 84th Annual Meeting and Exhibition, San Diego, California, May 5, l985.

Adenocarcinoma of the Rectum Complicating Crohn's Disease. Ibid.

Experience with Massive Hemorrhage Complicating the Radiation-Injured Rectum. Ibid.

The Potential of Flexible Fiberoptic Sigmoidoscopy in the Control of Colorectal Neoplasia. Israel Surgical Society, l3th World Congress of the Israel Medical Association, Jerusalem, Israel, May 22, l985.

Preoperative Radiation Therapy as the Key to Extending Sphincter Preservation and Preventing Local Recurrence in Rectal Cancer. Ibid.

Staging of Rectal Cancer. Colorectal Conference celebrating l50th Anniversary, St. Mark's Hospital, London, England, May 29, l985.

Techniques and Results of Extending Sphincter Preservation in Rectal Cancer Following Full Dose Preoperative Radiation Therapy. 3lst Congress of Société Internationale de Chirurgie, Paris, France, September 3, l985.

Techniques and Results of Extending Sphincter Preservation in Rectal Cancer Following Full Dose Preoperative Radiation Therapy. Hospital Dieu, Lyon, France, September 8, l985.

Techniques and Results of Extending Sphincter Preservation in Rectal Cancer Following Full Dose Preoperative Radiation Therapy. Simposio Internationale su Techniche avanzate vella diagnostic e nel trattamento delle neoplasie ano-Rettali, Amantea, Calabria, Italy, September l4, l985.

Presentation and Panel Discussion: Flexible Sigmoidoscopy - Safe Passage. American College of Surgeons, 7lst Annual Clinical Congress, Chicago, Illinois, October l3-l8, l985.

Endoscopy Surveillance for Inflammatory Bowel Disease. Southern Medical Association's 79th Annual Scientific Assembly, Orlando, Florida, November l9, l985.

Avoidance of Abdominal Perineal Resection in Crohn's Disease. 34th Annual Meeting of the New Jersey Chapter of the American College of Surgeons, Asbury Park, New Jersey, December 7, l985.

Flexible Fiberoptic Sigmoidoscopy in the Control of Colorectal Neoplasia. American College of Surgeons Meeting, Puerto Rico Chapter, San Juan, Puerto Rico, February 18-22, 1986.

Full Dose Preoperative Radiation Therapy and Sphincter Preservation for Selected Rectal Cancers. Ibid.

Personal Experience with Preoperative Radiation Therapy and Sphincter Preservation for Rectal Cancer. First Annual John Cheleden Memorial Lecture. Cancer Conference Daytona Beach--Rectocolon Cancer: State of the Art, Daytona Beach, Florida, Feb. 28, 1986.

Patient Selection for Adjuvant Treatment for Rectal Cancer. Cancer Conference Daytona Beach--Rectocolon Cancer: State of the Art, Daytona Beach, Florida, March l, 1986.

Sphincter Preservation Surgery for Cancers of the Distal 6 cm of Rectum Utilizing Full Dose Radiation Therapy: A Prospective Study. The Fourth International Symposium of Digestive Surgery and Endoscopy and the Ninth European Postgraduate Course of Gastrointestinal Endoscopy, Rome, Italy, April 9-12, 1986.

Complications of Flexible Fiberoptic Sigmoidoscopy. Ibid.

Expanding Sphincter Preservation for Rectal Cancer Utilizing New Techniques and Preoperative Radiation. American College of Surgeons, Central Pennsylvania Chapter, 33rd Annual Meeting, Hershey, PA, May 2-3, 1986.

Why Should the Surgeon Do Gastrointestinal Endoscopy? Ibid.

Sphincter Preservation for Cancer of the Distal 6 cm of Rectum Utilizing Full Dose Preoperative Radiation Therapy. XIth Biennial Congress of the International Society of Colorectal Surgeons, Dallas, TX, May 4-8, 1986.

Exploring New Options of Sphincter Preservation for Rectal Cancer Utilizing Preoperative Radiation Therapy. VII Convegno Internazionale Di Chirurgia, Copanello, Italy, June 26-28, 1986.

Flexible Fiberoptic Sigmoidoscopy in the Management of Colorectal Neoplasia. Ibid.

Management of Rectal Polyps. Ibid.

Sphincter Preservation for Cancer of Distal 6 cm of Rectum Utilizing Full Dose Preoperative Radiation Therapy. The World Congress of Gastroenterology, Sao Paulo, Brazil, September 7-12, 1986.

Management of Polyps with Invasive Carcinoma. Ibid.

Management of Polyps with Invasive Carcinoma. Ibid.

Sphincter Preservation Surgery for Cancers of the Distal 6 cm of Rectum Utilizing Full Dose Radiation Therapy. Philadelphia Academy of Surgery, Philadelphia, PA, October 6, 1986.

Moderator: Clinical Basic Science Problems in Surgery: Gastrointestinal Endoscopy for the Surgeon. American College of Surgeons, 72nd Annual Clinical Congress, New Orleans, Louisiana, October 19-24, 1986.

Anal Sphincter and Perineal Reconstruction. Motion Picture Session. Ibid.

Panel Moderator: Colonoscopy for Surgeons. Ibid.

Exploring New Options of Sphincter Preservation for Rectal Cancer Utilizing Preoperative Radiation Therapy. Michigan State Medical Society Annual Scientific Meeting, Dearborn, Michigan, November 11, 1986.

Adjunctive Radiation Therapy for Rectal Carcinoma. Northeastern Society of Colon and Rectal Surgeons, Marco Island, Florida, November 15-22, 1986

Emerging Data of Surgical Sphincter Preservation for Cancer of the Distal Third of the Rectum Utilizing Full Dose Preoperative Radiation Therapy. American College of Surgeons, Puerto Rico Chapter, 37th Annual Meeting, San Juan, Puerto Rico, February 24-28, 1987.

New Horizons in the Management of Rectal Cancer. Surgical Grand Rounds, St. Luke's Hospital, Bethlehem, PA, March 11, 1987.

Experience with Sphincter Preservation for Cancer of the Distal Rectum. Surgical Grand Rounds, Christiana Hospital, Wilmington, DE, March 14, 1987.

New Options for Sphincter Preservation for Cancer of the Rectum. Colorectal Cancer Program, Schumpert Medical Center, Shreveport, LA, March 20, 1987.

Flexible Sigmoidoscopy--Its Role in the Evaluation of the Patient with Colorectal Symptoms. Ibid.

Adjunctive Radiation Therapy and Its Role in the Treatment of Rectal Cancer.

New Horizons in the Management of Rectal Cancer, Department of Surgery, Louisiana State University, Shreveport, LA, March 20, 1987.

New Options for Sphincter Preservation in the Management of Rectal Cancer. St. Mary Hospital, Langhorne, PA, March 31, 1987.

Sphincter Preservation in the Management of Rectal Cancer. Controversial Issues of Colon Cancer Program, Atlantic County American Cancer Society, Brigantine, NJ, April 4, 1987.

New Surgical Sphincter Preservation Options in the Selective Management of Rectal Cancer Utilizing Full Dose Preoperative Radiation Therapy. American Society of Colon and Rectal Surgeons, 8th Annual Convention and Exhibition, Washington, DC, April 5-10, 1987.

Panel Moderator: "Anal Disease: Painful Anal Afflictions." American College of Surgeons, 15th Annual Spring Meeting, Philadelphia, PA, April 5-8, 1987.

Moderator: "Colonoscopy." Society of American Gastrointestinal Endoscopic Surgeons, Annual Scientific Session, Washington, DC, April 23-25, 1987.

Sphincter Preservation for Selected Rectal Cancers Utilizing Full Dose Preoperative Radiation Therapy and Special Surgical Techniques. Congress on Colorectal Cancer Surgery, Regional Medical Center, Teramo, Abruzzi, Italy, May 1, 1987.

Intervento Preordinato. "Le Metastasi": Convegno Cognito A.C.R.A.- S.I.P.D.T.T., Francavilla Al Mare, Italy, September 26, 1987.

Endorectal Sonographic Staging of Rectal Carcinoma. American College of Surgeons, 73rd Annual Clinical Congress, San Francisco, CA, October 11-16, 1987.

Sphincter Preservation for Cancer of the Distal Rectum Utilizing High Dose Preoperative Radiation Therapy. American Society for Therapeutic Radiology and Oncology, 29th Annual Meeting, Boston, MA, October 18-23, 1987.

Exploring New Options for Sphincter Preservation for Rectal Cancer. Fourth Annual Directors of Surgery, Philadelphia, PA, November 3, 1987.

Results of Multimodality Therapy for Anal Cancer. "Internationales Proktologisches Symposium/Treffen der Europaischen Stomatherapeuten," Erlangen, West Germany, November 28, 1987.

Anal Sphincter Reconstruction and Enhancement Surgery: Results of a Ten Year Personal Experience. Ibid.

Moderator: Reconstruction of the Anal Sphincter--Indications, Operative Techniques, Results." Ibid.

Results of High Dose Preoperative Radiation and Resection for Fixed Rectal Cancer. American College of Surgeons Meeting, Puerto Rico Chapter, San Juan, PR, February 9-13, 1988.

Sphincter Preservation for Cancer of the Distal Rectum Utilizing Full Dose Preoperative Radiation Therapy. Conjoint Meeting: Philadelphia Academy of Surgery and New York Surgical Society, Philadelphia, PA March 9, 1988.

Experience with Sphincter Preservation and High Dose Preoperative Radiation for Unfavorable Rectal Cancer. Symposium on Colorectal Disease in Conjunction with the University of Alberta, Edmonton, Canada, May 7, 1988.

Results of High Dose Preoperative Radiation and Resection for Fixed Rectal Cancer. American Society of Colon and Rectal Surgeons 87th Annual Convention, Anaheim, CA, June 12-17, 1988.

Preparing the Technologically Literate Surgeon of the 90's. Opening Address," International Congress of Surgical Endoscopy, Ultrasound and Interventional Techniques, Berlin, Germany, June 29 - July 2, 1988.

Sphincter Preservation for Cancer of the Distal Rectum Utilizing Full-Dose Preoperative Radiation Therapy and Special Surgical Techniques. First World Postgraduate Course Surgical Week of the University of Milan and XXVI World Congress of the International Congress of Surgeons - 1988 Surgical Updating, Milan, Italy, July 3-9, 1988.

Limits of Sphincter Preservation in Selective Management of Rectal Cancer Utilizing High Dose Preoperative Radiation. XIIth Biennial Congress, International Society University Colon and Rectal Surgeons, Glasgow, United Kingdom, July 10-14, 1988.

Moderator: Organizational Models for the Practice of Digestive Endoscopy in Office and Hospital. Roma88/International Congresses of Gastroenterology and Digestive Endoscopy, Rome, Italy, September 4-11, 1988.

High Dose Preoperative Radiation and Full-Thickness Local Excision: A New Option for Patients with Select Cancers of the Rectum. American Society for Therapeutic Radiology and Oncology, New Orleans, LA, October 9-14, 1988.

Moderator: Radiation Enteritis and Surgery. American College of Surgeon, 74th Annual Clinical Congress, Chicago, IL, October 23-28, 1988.

Endorectal Sonography. Gastrointestinal Endoscopy: New Horizons in Diagnosis and Therapy (Postgraduate Course). Lake Buena Vista, Florida, December 7-10, 1988.

Panel Discussion. Endoscopic Ultrasound. Ibid.

Colonoscopic Decision-Making: A Different Perspective. Ibid.

Defecography and Diagnostic Dilemmas of the Anorectum. Ibid.

Diagnosis and Management of Common Anorectal Disorders. Ibid.

Panel Discussion. Management of Rectal Foreign Bodies. Ibid.

Seminar on Hemorrhoidal Therapies-1988: The City View. Ibid.

Full Thickness Local Excision of Select Rectal Cancers Following High Dose Radiation. American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February 21-25, 1989.

Other Sphincter Saving Surgical Alternatives. (Controversies in Managing Rectal Cancer Session). Spring Meeting, American College of Surgeons, Boston, MA, April 2-6, 1989.

High Dose Preoperative Radiation and Sphincter Preservation Surgery in the Management of the Unfavorable and Low-Lying Rectal Cancer. Philadelphia Meeting of the Southern Society of Clinical Surgeons, Jefferson Medical College of Thomas Jefferson University, Philadelphia, PA, April 4, 1989.

Alternatives to Abdominoperineal Resection of Distal Rectal Cancer. American Radium Society, St. Thomas, Virgin Islands, April 15-19, 1989.

Combined Abdominal Transsacral Resection. Contemporary Surgery Updated 1989, Department of Surgery, Jefferson Medical College, Philadelphia, PA, May 13, 1989.

Transanal Abdominal Transanal Resection and Coloanal Anastomosis. Ibid.

Sphincter Preservation for Cancer of the Distal Rectum Utilizing High Dose Preoperative Radiation. Ibid.

The Benefits of a Non-Traditional Jefferson Treatment Program for Rectal Cancer: A 13- Year Experience. Jefferson Medical College, Reunion Program, Philadelphia, PA, June 10, 1989.

Technique and Experience with Full Thickness Local Excision of Distal Rectal Cancer Following High Dose Radiation. Spring Meeting, American Society of Colon and Rectal Surgeons, Toronto, Ontario, Canada, June 11-16, 1989.

High Dose Preoperative Radiation and Sphincter Preservation Surgery for Selected Rectal Cancer: A 12-Year Experience. American Society of Colon and Rectal Surgeons, Tripartite Meeting, Birmingham, United Kingdom, June 19-22, 1989.

The Benefit of High Dose Preoperative Radiation and Sphincter Preservation Surgery; Full Thickness Local Excision Following High Dose Radiation-Selected New Options; and Decision Making in Colorectal Neoplasms: A Surgeon's Viewpoint. The 5th International Symposium of Digestive Surgery and Endoscopy, Rome, Italy, October 11-14, 1989.

The Benefits of High Dose Preoperative Radiation for Unfavorable and Low-Lying Rectal Cancer: Impact Upon Local Recurrence, Survival, and Extended Use of Sphincter Preservation Surgery, Philadelphia Academy of Surgery, November 6, 1989.

The Benefits of High Dose Preoperative Radiation and Sphincter Preservation Surgery for Select Rectal Cancer. Gastrointestinal Cancer Symposium, St. Joseph's Medical Center, Los Angeles, California, November 10-11, 1989.

The Benefits of High Dose Preoperative Radiation and Sphincter Preservation Surgery for Select Rectal Cancer: How unique and how revolutionary?" Pennsylvania Hospital Surgical Grand Rounds, November 29, 1989.

Techniques for Sphincter Preservation Following High-Dose Radiation Therapy for Carcinoma of the Rectum. DeWitt Daughtry Postgraduate Seminar, University of Miami School of Medicine, Miami Beach, Florida, January 18-20, 1990.

Anorectal Manometry in Unique Postsurgical Models: Insight into Anal Sphincter Competence. Society of American Gastrointestinal Endoscopic Surgeons Annual Scientific Meeting and International Congress, Atlanta, Georgia, March 15-19, 1990.

Sphincter Preservation in the Treatment of Rectal Cancer. Collegium Internationale Chirurgiae Digestivae Meeting, San Antonio, Texas, May 15-16, 1990.

Marks, G.: Preoperative Radiation and Sphincter Preservation for Rectal Cancer. Audio Digest General Surgery #ISSN 1047-6954, March 1990.

Preoperative Radiation Therapy and Sphincter Preservation for Selected Rectal Cancer. La Société De Chirurgie De Lyon Le College Lyonnais De ColoProctologie, Lyon, France, June 15-16, 1990.

The Outcome of Radical Sphincter Preservation Surgery for Cancer of the Distal 3 cm of the Rectum Following High Dose Radiation. World Congress of Gastroenterology, Sydney, Australia, August 28, 1990.

Radiotherapy In Recurrent Rectal Cancer. International Programmes In Colorectal Surgery. Hamilton Island, Queensland, Australia, September 3, 1990.

New Hope and Promise Afforded by High dose Preoperative Radiation Therapy for Select Rectal Cancer: Results of a 15 Year Program. Surgical Grand Rounds, Howard University, Washington, D.C., December 10, 1990.

New Limits of Sphincter Preservation for the Treatment of Adenocarcinoma of the Rectum. Baltimore Oncology Club Meeting, Towson, Maryland, March 21, 1991.

Selective High Dose Preoperative Radiation and Radical Curative Sphincter Preservation Surgery for Rectal Cancer. Society of Surgical Oncology Annual Meeting, Orlando, Florida, March 25, 1991.

Sphincter Preservation for Low-Lying Rectal Cancer. Controversies in Surgery Course, Department of Surgery, Jefferson Medical College of Thomas Jefferson University, Absecon, New Jersey, May 23-25, 1991.

Adjuvant Radiotherapy with Sphincter Preservation Surgery for Cancer of the Distal 3 cm of Rectum. International Surgical Week, Stockholm, Sweden, August 25-31, 1991.

Discussant. Endoluminal ultrasonography: A New Diagnostic Tool for Staging Extrarectal Tumors. American College of Surgeons 77th Annual Clinical Congress, Chicago, Illinois, October 20-25, 1991.

New Hope and Promise for the Patient with Rectal Cancer: The Jefferson Experience. Mercy Catholic Medical Center Surgical Grand Rounds, Darby, PA, November 20, 1991.

Sphincter Saving Techniques for Rectal Cancer. Northwestern University's Medical School Postgraduate Course, Chicago, Illinois, December 10-11, 1991.

The Combined Modality Treatment of Rectal Cancer. The Philadelphia Roentgen Ray Society Meeting, Philadelphia, PA, January 2, 1992.

The Reality of Sphincter Preservation Surgery for Cancer of the Distal 3 cms of the Rectum Utilizing High Dose Preoperative Radiation. American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February 19-22, 1992.

A Salute to the Revolution. Opening Address-Third World Congress of Endoscopic Surgery, Bordeaux, France, June 18-20, 1992.

Panel Co-Chairman: Endoscopic and Laparoscopic Treatment of Colonic and Small Bowel Lesions. Third World Congress of Endoscopic Surgery, Bordeaux, France, June 18-20, 1992.

Sphincter Preservation Surgery for Rectal Cancer. Challenges In Anorectal Disease Symposium. Third International Gastro-Surgical Club Meeting. Padova (Padua), Italy, June 24-27, 1992.

The Reality of Radical Sphincter Preservation Surgery for Cancer of the Distal 3 cms of the Rectum Utilizing High-Dose Preoperative Radiation. American Society of Therapeutic Radiology and Oncology. November 9, 1992.

Pre-Operative Radiation Therapy as the Key to Sphincter Preservation for Cancer of the Distal Rectum. International Surgery Week. Rome, Italy, November 30, 1992.

Conservative Resection of Cancer of the Distal Rectum: Selection, Techniques and Outcomes using High-Dose Pre-Operative Radiation. American College of Surgeons. Puerto Rico Chapter. February 18, 1993.

Panel Coordinator: The new wave of colon surgery: Interactive Panel Session. SAGES, Phoenix, Arizona, March 31-April 3, 1993

The Jefferson Rectal Cancer Management Program, A Pioneering Clinical Effort Interacts with Scientists of the Jefferson Cancer Institute: The New Jefferson Profile. The Joe Henry Coley Lecture. Jefferson Medical College Alumni Association, Thomas Jefferson University Philadelphia, PA, June 5, 1993.

Chairman, Endoscopic Surgery of the Lower G.I., 1st Asian Pacific Congress of Endoscopic Surgery. Singapore, August, 1993.

Endoscopic Radiographic Guided Balloon Dilatation of Anastomotic Rectal Stricture. 1st Asian Pacific Congress. Singapore, August, 1993.

Extending the Limits of Sphincter Preservation Surgery for Rectal Cancer with selective Preoperative Radiation. Northeastern Society of Colon and Rectal Surgeons. The Breakers Hotel, Palm Beach, Florida, November 8, 1993.

Establishment of Guidelines for Education and Practice of Endoscopic Surgery. Presented to the Council of Department Chairmen. Italian Association of Laparoscopic Surgery, Cortina d'Ampezzo. February 25-26, 1994.

Preoperative Radiotherapy in Colon Cancer. Department of Surgery, University of Milan, Milan, Italy. February 28, 1994.

Surgical Considerations of Coloanal Anastomosis for Distal Rectal Cancer. Poster Presentation. American Society of Colon & Rectal Surgeons. Orlando, Florida, May 8-13, 1994.

Speaker, Opening Ceremony, 4th World Congress of Endoscopic Surgery, Kyoto, Japan, June 16, 1994.

The Past, Present, and Future of Endoscopic Surgery. Chinese Association for Endoscopic Surgery, Taipei, Taiwan, China, June 20, 1994.

Sphincter Preservation Surgery for Distal Rectal Cancer Following High-Dose Radiation: A Two-Decade Experience. Presented to the Symposium on Gastrointestinal Cancer Celebration of the Tenth Anniversary of the University of Rome and Thomas Jefferson University Affiliation. University of Rome Medical School. Rome, Italy. September 23-24, 1994.

Flexible Fiberoptic Sigmoidoscopy in Colorectal Cancer Screening. Presented at the Fremantle Hospital Medical Staff Meeting. October 20, 1994, Fremantle, Western Australia.

Sphincter Preservation Surgery for Cancer of the Distal Rectum Following High-Dose External Irradiation. Presented at the Fremantle Hospital Medical Staff Meeting. October 20, 1994, Fremantle, Western Australia.

The History of the Surgical Revolution. Opening Address to the Royal Australasian College of Surgeons (RACS) and the Endoscopic and Laparoscopic Surgeons of Asia (ELSA) Endosurgery Congress. October 20-22, 1994, Perth, Western Australia.

The Jefferson Experience of High-Dose Preoperative Radiation and Sphincter Preservation Surgery by Radical Procto-Sigmoidectomy and Coloanal Anastomosis. Presented to the Medical and Surgical Societies of Xian. Xian, People's Republic of China, October 24- November 6, 1994.

The Jefferson Experience with Full-Thickness Local Excision for Select Rectal Cancers Following High-Dose Radiation. Presented to the Medical and Surgical Societies of Xian. Marks, G. and Marks, J. Xian, People's Republic of China, October 24-November 6, 1994.

The Jefferson Experience of High-Dose Preoperative Radiation and Sphincter Preservation Surgery by Radical Procto-Sigmoidectomy and Coloanal Anastomosis. Presented to the Medical and Surgical Societies of Tianjian. Tianjian, People's Republic of China, October 24-November 6, 1994.

The Jefferson Experience with Full-Thickness Local Excision for Select Rectal Cancers Following High-Dose Radiation. Presented to the Medical and Surgical Societies of Tianjian. Marks, G. and Marks, J. Tianjian, People's Republic of China, October 24- November 6, 1994.

The Jefferson Experience of High-Dose Preoperative Radiation and Sphincter Preservation Surgery by Radical Procto-Sigmoidectomy and Coloanal Anastomosis. Presented to the Medical and Surgical Societies of Nanjing. Nanjing, People's Republic of China, October 24- November 6, 1994.

The Jefferson Experience with Full-Thickness Local Excision for Select Rectal Cancers Following High-Dose Radiation. Presented to the Medical and Surgical Societies of Nanjing. Marks, G. and Marks, J. Nanjing, People's Republic of China, October 24-November 6, 1994.

The Jefferson Rectal Cancer Management Program. Presented to the Medical and Surgical Staffs of the Jiangsu Cancer Hospital and Institute. Nanjing, People's Republic of China, October 24-November 6, 1994.

The Jefferson Experience of High-Dose Preoperative Radiation and Sphincter Preservation Surgery by Radical Procto-Sigmoidectomy and Coloanal Anastomosis. Presented to the Shanghai Medical and Surgical Society. Shanghai, People's Republic of China, October 24- November 6, 1994.

Visiting Professor and Leader of Grand Rounds at Brown University, Department of Surgery, Providence, Rhode Island, November 29-30, 1994.

Jefferson Experience of High-Dose Radiation and Sphincter Preservation Surgery for Cancer of the Distal Rectum. Presented to the Surgical Staff of the Brown University Medical School Affiliated Hospitals, Rhode Island Hospital, Providence, Rhode Island, November 29- 30, 1994.

Selective High-Dose Preoperative External Radiation with Radical or Local Sphincter Preservation Surgery for the Advanced and/or Distal Rectal Cancer: The Jefferson Experience. Invited guest lecturer at the Annual Symposium of the Oncological Workshop of the German Surgical Association (CAO). Frankfurt Medical School and Krankenhaus Nordwest, Frankfurt, Germany, December 15-16, 1994.

Sphincter Saving Surgery for Rectal Cancer. Presented at the American Radium Society 77th Annual Meeting, American Radium Society, Paris, France, April 29-May 3, 1995.

Leader of Grand Rounds at the University of Pennsylvania, Department of Surgery, Philadelphia, Pennsylvania, May 6, 1995.

The Jefferson Experience of High-Dose Pre-Operative Radiation Therapy and Sphincter Preservation Surgery for Cancer of the Distal Rectum. Presented at the Third International Congress on New Technology and Advanced Techniques in Surgery, sponsored by the European Association for Endoscopic Surgery (EAES), the Association Europeenne de Chirurgie Viscerale (AECV), and the Society of American Gastrointestinal Endoscopic Surgeons (SAGES). Luxembourg, June 11-17, 1995.

The Three R’s of Endoscopic Surgery: Revolution, Research, and Responsibility. Presented to senior staff members of the Senate and House Committees on Health & Finance, members of the Center for General Health Service Extramural Research, representatives of the FDA, and representatives of HCFA. Organized by SAGES (Society of American Gastrointestinal Endoscopic Surgeons) and the SAGES Corporate Council, Hart Senate Building, Washington, DC, August 15, 1995.

High-Dose Preoperative External Radiation Therapy and Sphincter Preservation Surgery for Cancer of the Distal Rectum. Invited Speaker, “Rectal Cancer -- Surgical Management in the Light of Current Basic and Clinical Research.” Virchow Hospital, Humboldt University of Berlin, Berlin, Germany, September 29-30, 1995.

A Twenty-Year Experience in the Use of High-Dose Preoperative Radiation Therapy and Sphincter Preservation Surgery for Distal Rectal Cancer. Visiting Professor, University of Nice, Nice, France, October 1-5, 1995.

Surgery as an Option After Re-Irradiation of Primary and Recurrent Rectal Cancer. Invited Speaker, 46th Annual Meeting of the American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February 14-17, 1996.

Extending the Limits of Sphincter Preservation Surgery for Rectal Cancer: A Two-Decade Experience Utilizing High-Dose Preoperative External Irradiation. Invited Speaker, Conjoint Meeting of the Philadelphia Academy of Surgery and the New York Surgical Society, Philadelphia, Pennsylvania, March 28, 1996.

Extending the Limits of Sphincter Preservation Surgery for Rectal Cancer: A Two-Decade Experience Utilizing High-Dose Preoperative External Irradiation. Presenter of Grand Rounds and Curts Visiting Professor, Dartmouth University, Lebanon, New Hampshire, April 26-27, 1996.

An Overview of a Two-Decade Experience with a Multi-Modality Treatment for Rectal Cancer. Invited Speaker at the Meeting of the Pennsylvania Society of Colon and Rectal Surgeons, Philadelphia, Pennsylvania, May 31, 1996.

The Genesis and Results of a Two-Decade Program of Extending Sphincter Preservation Surgery for Rectal Cancer Utilizing Preoperative Radiation. Presenter of Grand Rounds and Visiting Professor, Ohio State University, Columbus, Ohio, September 26, 1996.

Extending the Limits of Sphincter Preservation Surgery for Rectal Cancer: A Two-Decade Experience Using Preoperative Irradiation. Magisterial Lecture, Italian Surgical Society, Rome, Italy, October 13, 1996.

The Genesis and Outcome of a Two-Decade Experience of High-Dose Preoperative Radiation and Sphincter Preservation Surgery. Visiting Professor, University of Ancona, Ancona, Italy, October 21, 1996.

The Genesis and Outcome of a Two-Decade Experience of High-Dose Preoperative Radiation and Sphincter Preservation Surgery. Visiting Professor, University of Milan, Milan, Italy, October 22, 1996.

Implications of a Two-Decade Rectal Cancer Management Program of High-Dose Preoperative Radiation and Sphincter Preservation Surgery. Presenter of Grand Rounds and Visiting Professor, Wayne State University, Detroit, Michigan, October 26, 1996.

The Genesis and Outcome of a Two-Decade Experience of High-Dose Preoperative Radiation and Sphincter Preservation Surgery. Presenter of Grand Rounds and Visiting Professor, New York Medical College, Valhalla, New York, November 11, 1996.

Surgical Management of the Radiation-Injured Bowel. Invited Speaker at San Francisco Cancer Symposium, San Francisco, California, March 1-2, 1997.

The Genesis and Results of a Two-Decade Multi-Modal Rectal Cancer Management Program With Sphincter Preservation. Presenter of Grand Rounds and Visiting Professor, MD Anderson Cancer Center, Houston, Texas, April 2, 1997.

The Genesis and Results of a Two-Decade Program of Extending Sphincter Preservation Surgery for Rectal Cancer Utilizing Preoperative Radiation. Invited Speaker at the Meeting of the Piedmont Society of Colon and Rectal Surgeons, Sea Island, Georgia, April 3-6, 1997.

The Genesis and Results of a Two-Decade Multi-Modal Rectal Cancer Management Program with Sphincter Preservation. Invited Speaker at the ChemoRadiation Summit 2, Yosemite, California, April 17-19, 1997.

High-Dose Preoperative External Irradiation and Sphincter Preservation Surgery in the Management of the Patient with Fixed Rectal Cancer. John Marks, Gerald Marks, Mohammed Mohiuddin. Poster presentation at annual meeting of the American Radium Society, New York, New York, May 1, 1997.

Full-Thickness Local Excision for Select Distal Rectal Cancer Following High-Dose External Irradiation. John Marks, Gerald Marks, Mohammed Mohiuddin. Poster presentation at annual meeting of the American Radium Society, New York, New York, May 2, 1997.

Vaginal Wall Preservation with Curative Sphincter Preservation Surgery for Rectal Cancer Following High-Dose External Irradiation. John Marks, Gerald Marks, Mohammed Mohiuddin. Presentation at annual meeting of the American Radium Society, New York, New York, May 4, 1997.

Maximizing Operability and Sphincter Preservation Surgery After High-Dose External Irradiation. Innovative Options in Rectal Cancer Management, Allegheny University of the Health Sciences, Philadelphia, Pennsylvania, May 19, 1997.

Maximizing Sphincter Preservation for Cancer of the True Rectum Using High-Dose Preoperative External Irradiation. Gerald Marks, John Marks, Mohammed Mohiuddin, Luther Brady. 1997 Clinical Research Conference, Allegheny University of the Health Sciences, Philadelphia, Pennsylvania, June 12, 1997.

The Prognostic Implications of the Post-Radiated Stage pT0 Rectal Cancer. Joseph Bannon, John Marks, Gerald Marks. Poster presentation at annual meeting of the American Society of Colon and Rectal Surgeons, Philadelphia, Pennsylvania, June 23, 1997.

Extending the Limits of Sphincter Preservation Surgery for Rectal Cancer Utilizing High- Dose Preoperative Irradiation. International Surgical Week ISW97. 37th World Congress of Surgery of the ISS/SIC, Acapulco, Mexico, August 24-30, 1997.

Maximizing Sphincter Preservation for Cancer of the True Rectum by the Use of High- Dose Preoperative External Radiation. The Fourth International Conference on Gastrointestinal Oncology: Sphincter Preservation for Rectal and Anal Cancer, Pentagon City, Virginia, September 12-15, 1997.

Diverse Observations in a Two-Decade Rectal Cancer Management Program of High-Dose Preoperative Irradiation and Extended Sphincter Preservation Surgery. 48th Annual Meeting of the American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February 11-15, 1998.

Diverse Observations of a Two-Decade Rectal Cancer Management Program of High-Dose Preoperative Irradiation and Extended Sphincter Preservation Surgery. XVII Biennial Congress of the International Society of University Colon and Rectal Surgeons, Malmö, Sweden, June 7-11, 1998.

Diverse Benefits of Selective Preoperative Irradiation for Rectal Cancer. Presenter of Grand Rounds. University of Florida Health Science Center, Jacksonville, Florida, October 15, 1998.

Trial on Local Excision of Rectal Cancer Using TEM and Radiotherapy. Chairman of conference hosted by University of Ancona, Rome, Italy, February 5-7, 1999.

Quality of Life: The Proper Assessment of Rectal Cancer Management. 49th Annual Meeting of the American College of Surgeons, Puerto Rico Chapter, San Juan, Puerto Rico, February 10, 1999.

Sphincter Preservation Options Utilizing High-Dose Preoperative Irradiation for Distal Rectal Cancer in the Elderly. Poster presentation, Society of Surgical Oncology 53rd Annual Cancer Symposium, New Orleans, Louisiana, March 16 to 19, 2000.

The Power of the Scope: Building International Bridges. 7th World Congress of Endoscopic Surgery, Singapore, June 2, 2000.

Endoluminal and Laparoscopic Surgery for Rectal Cancer. Committee Chairman. 8th International Congress of the European Association for Endoscopic Surgery (EAES), Nice, France, June 29, 2000.

PRESENTATIONS TO NON-MAJOR SOCIETIES AND INSTITUTIONS:

Unusual Manifestation of Massive Gastrointestinal Bleeding. Philadelphia Proctologic Society, l955.

Pitfalls in the Surgical Management of Diverticulitis. Visiting Lecturer, Miami Valley Hospital, Department of Surgery, Dayton, Ohio, August l967.

The Avoidance of Pitfalls in the Management of Diverticulitis of the Colon. Beaver County Medical Society, September l967.

Pitfalls in the Management of Diverticulitis of the Colon. Chester County Hospital, West Chester, Pennsylvania, March l968.

Surgical Management of Rectal Prolapse; Hemorrhoidectomy: Management of Common Rectal Problems. Lectures and Operative Clinic, Veterans Administration Center, San Juan, Puerto Rico, November l968.

Constipation in the Institutionalized Patient. Veterans Administration Hospital, Coatesville, Pennsylvania, December l968.

Complicated Rectal Fistula. Visiting Consultant Operative Clinic, Veterans Administration Center, San Juan, Puerto Rico, February l969.

Bowel Problems in the Institutionalized Neuropsychiatric Patient. Veterans Administration Hospital, Coatesville, Pennsylvania, February l969.

The Fatal Face of Fistula-in-Ano. Pennsylvania Society of Colon and Rectal Surgery, Philadelphia, Pennsylvania, March l969.

Current Concepts of Duodenal Peptic Ulcer Disease. Hobart Amory Hare Society Symposium, Jefferson Medical College, April l969.

Inflammatory Lesions of the Colon: When to Operate. Visiting Lecturer, Penn State- Jefferson Continuing Education, St. Vincent's Hospital, Erie, Pennsylvania, April l969.

Sphincter Preservation by the Transsacral Approach to Benign and Malignant Tumors of the Rectum. Symposium on Cancer of the Intestinal Tract. Jefferson Medical College Clinical Cancer Training Program, Philadelphia, Pennsylvania, May l969.

Bleeding from the Lower Gastrointestinal Tract. Frankford Hospital, Philadelphia, Pennsylvania, September l969.

Transsacral Rectal Fixation for Treatment of Rectal Prolapse. Northeastern Proctologic Conference, Atlantic City, New Jersey, October l969.

The Changing Techniques of Abdominal and Thoracic Surgery. Visiting Lecturer, York Hospital-Jefferson Continuing Education, York, Pennsylvania, December l969.

Chronic Leg Ulcers. Pottsville Hospital, Penn State-Jefferson Continuing Education, Pottsville, Pennsylvania, January l970.

Chronic Leg Ulcers. Podiatry Interns, St. Luke's and Children's Medical Center, Philadelphia, Pennsylvania, February l970.

New Methods in the Management of Leg Ulcers. Peripheral Vascular Conference, Philadelphia General Hospital, Philadelphia, Pennsylvania, March l970.

New Methods in the Management of Leg Ulcers. Peripheral Vascular Conference, Philadelphia, Pennsylvania, March l970.

Rectal Reconstruction by the Combined Abdominotranssacral Approach. Northeastern Proctologic Conference, Castle Harbour, Bermuda, October l970.

Clinical Experience with a Flexible Fiberoptic Colonoscope. Northeastern Proctologic Conference, Castle Harbour, Bermuda, October l970.

Rectal Reconstruction by the Combined Abdominotranssacral Approach. Pennsylvania Society of Colon and Rectal Surgery and Pennsylvania Medical Society, Lancaster, Pennsylvania, November l970, December l970, February l97l.

Clinical Experience with Flexible Fiberoptic Colonoscope. Pennsylvania Society of Colon and Rectal Surgery, Philadelphia, Pennsylvania, March l97l.

Surgical Aspects of Inflammatory Lesions of the Colon. Continuing Education Program, Penn State-Methodist Hospital, Philadelphia, Pennsylvania, March l97l.

Clinical Experience with the Flexible Fiberoptic Colonoscope. Eastern States Osteopathic Society of Proctology, Lancaster, Pennsylvania, April l97l.

Rectal Reconstruction by the Combined Abdominotranssacral Approach. Eastern States Osteopathic Society of Proctology, Lancaster, Pennsylvania, April l97l.

The Patient and Major Bowel Surgery: Office Problems with the Nether End. Continuing Education Program, York Hospital, York, Pennsylvania, April l97l.

Visual Aids in the Diagnosis of Diseases of the Lower Bowel. Continuing Education Program, Altoona, Pennsylvania, October l97l.

The Diagnosis and Management of Non-Healing Leg Ulcers. Alumni Association, Pennsylvania College of Podiatric Medicine, October l97l.

Inflammatory Lesions of the Colon. Continuing Education Program, Pottsville Hospital, Pottsville, Pennsylvania, November l97l.

An Analysis of Deaths from Fistula-in-Ano with Abscess. Northeastern Proctologic Conference, Palm Beach, Florida, December l97l.

New Methods in the Management of Difficult and Demanding Problems of the Colon and Rectum. University of Arizona Medical School, Tucson, Arizona, May l972.

Inflammatory Diseases of the Bowel. Department of Surgery, Wilmington Medical Center, Wilmington, Delaware, July l972.

New Methods in the Management of Difficult and Demanding Problems of the Colon and Rectum. John H. Gibbon Surgical Society, Jefferson Medical College, Philadelphia, Pennsylvania, September l972.

The Clinical Application of Flexible Fiberoptic Colonoscopy and Colonoscopic Polypectomy. Pennsylvania Society of Colon and Rectal Surgery and Pennsylvania Medical Society, Lancaster, Pennsylvania, October l972.

The Clinical Application of Flexible Fiberoptic Colonoscopy and Colonoscopic Polypectomy. Chester County Hospital Medical Staff, West Chester, Pennsylvania, March l973.

Fistula-in-Ano as Cause of Death. Ohio State Medical Society, Columbus, Ohio, May 7, l973.

Impact of Flexible Fiberoptic Colonoscopy upon Colonic Disease. Ohio State Medical Society, Columbus, Ohio, May 7, l973.

Carcinoma of the Rectum: Sphincter Preservation by the Combined Abdominotranssacral Technique. Northeastern Proctologic Conference, Scottsdale, Arizona, November l973.

Operative Colonoscopy: A Current Status Appraisal. Pennsylvania Society of Colon and Rectal Surgery, Philadelphia, Pennsylvania, March 6, l974.

Flexible Fiberoptic Colonoscopy. Veterans Administration Hospital Resident Staff, Philadelphia, Pennsylvania, March l974.

Flexible Fiberoptic Colonoscopy. Operating Room Technicians Association, Philadelphia, Pennsylvania, September 2l, l974.

New Techniques in Ostomy Surgery. Colostomy-Ileostomy Rehabilitation Association, 25th Anniversary Meeting, Philadelphia, Pennsylvania, October 5, l974.

Controversy of Colostomy Irrigation. Ibid.

The Effectiveness of Intravenous Vibramycin as an Adjunct to Contaminated Gastrointestinal Surgery. Northeastern Proctologic Conference, Palm Beach, Florida, October 29, l974.

Fees and Third Party Attitudes Related to Colonoscopy. Ibid.

Non-Healing Lower Extremity Ulcer. Norfolk General Hospital, Norfolk, Virginia, November 8, l974.

Radiation Induced Recto-vaginal Fistulae: Surgical Correction by the Combined Abdominotranssacral Approach. Obstetrical Society of Philadelphia, Philadelphia, Pennsylvania, December 5, l974.

The Impact of Fiberoptic Colonoscopy. (Marks, G. and Cerda, J.) Sarasota County Medical Society, Sarasota, Florida, December 8, l974.

Rectal Prolapse: A Simplified Transsacral Technique. Ibid.

Anal Sphincter Preservation by the Combined Abdominotranssacral Technique for Benign and Malignant Surgical Lesions of the Rectum. Ibid.

Pitfalls and Pratfalls in the Management of Diverticular Disease. Ibid.

The Spectrum of the Radiation-Injured Gut. (Marks, G. and Cerda, J.) Ibid.

Flexible Fiberoptic Colonoscopy. St. Mary's Hospital, Hoboken, New Jersey, December l4, l974.

Flexible Fiberoptic Colonoscopy. Operating Room Nurses Association, Philadelphia, Pennsylvania, January l5, l975.

Principles of Surgical Management in Inflammatory Bowel Disease, National Foundation for Ileitis and Colitis, Philadelphia, Pennsylvania, January l9, l975.

The Clinical Application of Colonoscopy. Atlantic City Medical Center, Atlantic City, New Jersey, February 26, l975.

Flexible Fiberoptic Colonoscopy. Provident Hospital Medical Staff, Baltimore, Maryland, March l9, l975.

The Surgeon and the Sphincter. Mayo Clinic, Rochester, Minnesota, April l975.

The Irrigation Controversy. Colostomy-Ileostomy Rehabilitation Society, Philadelphia, Pennsylvania, May l8, l975.

The Management of Non-Healing Ulcers of the Extremity. Veterans Administration Clinic, Philadelphia, Pennsylvania, June 4, l975.

New Twists on Old Turns in the Colon. Crozer-Chester Medical Center, June l7, l975.

Colonoscopy and Polypectomy: Complications, Prevention, and Management. Pennsylvania Society of Colon and Rectal Surgery and Pennsylvania Medical Society, Harrisburg, Pennsylvania, November 5, l975.

Radiation Necrosis of the Rectum: Surgical Reconstruction by the Combined Abdominotranssacral Technique. Thomas Jefferson University Medical and Surgical Association, November 20, l975.

The Subtle Considerations of Colonoscopy. Northeastern Proctologic Conference, Marco Beach, Florida, November 30 to December 6, l975.

Further Experience in the Surgical Management of the Radiation-Damaged Rectum. Ibid.

Colonoscopy. Bryn Mawr Hospital Surgical Conference, Bryn Mawr, Pennsylvania, December 9, l975.

Post-Resectional Universal Diverticular Disease, Intractable Pain, Colonoscopy, and Patient Selection for Subtotal Colectomy. Pennsylvania Society of Colon and Rectal Surgery, Philadelphia, Pennsylvania, March l2, l976.

The Acute Abdomen. College of Physicians of Philadelphia, Second Career Emergency Course, April 27, l976.

Difficult and Demanding Problems of Surgery of the Colon and Rectum: New Twists on Old Turns. Long Island College Hospital, Brooklyn, New York, March 25, l976.

Difficult and Demanding Problems of Surgery of the Colon and Rectum: New Twists on Old Turns. St. Vincent's Hospital, Worcester, Massachusetts, May l9, l976.

Difficult and Demanding Problems of Surgery of the Colon and Rectum: New Twists on Old Turns. Gloucester County Medical Society, Woodbury, New Jersey, May 20, l976.

The Diagnosis and Management of the Acute Abdomen. Soldiers and Sailors Memorial Hospital, Wellsboro, Pennsylvania, June l6, l976.

The Management of Difficult and Demanding Problems of the Colon and Rectum: A Colorectal Potpourri. Allentown Sacred Heart Hospital, Allentown, Pennsylvania, October 2, l976.

Colonoscopy Update - '76. Central Pennsylvania Society for Gastrointestinal Endoscopy. Hershey Medical Center, Department of Surgery, Hershey, Pennsylvania, October 7, l976.

Difficult and Demanding Problems of the Colon and Rectum: New Twists on Old Turns. Ibid.

New Methods in the Management of Difficult and Demanding Problems of the Colon and Rectum. Mount Sinai Medical Center, Miami Beach, Florida, October l9, l976.

Transsacral Repair of Rectal Prolapse. Pennsylvania Medical Society's Medical Arts '76 Specialty Society Meeting, Hershey, Pennsylvania, November 3, l976.

New Methods in Treating Demanding Problems of the Colon and Rectum. Burlington County Memorial Hospital, Mount Holly, New Jersey, November 4, l976.

New Methods in the Management of Difficult and Demanding Problems of the Colon and Rectum. Wayne-Union County Medical Society, Richmond, Indiana, November 9, l976.

Pitfalls and Pratfalls in the Management of Diverticular Disease of the Colon. Ried Memorial Hospital, Richmond, Indiana, November l0, l976.

New Methods in the Management of Difficult and Demanding Problems of the Colon and Rectum. St. Elizabeth Hospital, Dayton, Ohio, November l976.

Fiberoptic Colonoscopy. John F. Kennedy Hospital, Philadelphia, Pennsylvania, November 17, l976.

Difficulty in Managing Colon and Rectal Problems. Ephrata Community Hospital, Ephrata, Pennsylvania, November l9, l976.

Colonoscopy - Update '76. Northeastern Proctologic Conference, Boca Raton, Florida, December 4 - 12, l976.

A Non-Endoscopist's View of the Colon. New York Society for Gastrointestinal Endoscopy, New York, New York, December 6, l976.

New Methods in the Management of Colorectal Problems. St. Agnes Hospital, Surgical Grand Rounds, Philadelphia, Pennsylvania, January 27, l977.

Asymptomatic cancer of the Colon. Visiting Professor, Hahnemann Hospital, Philadelphia, Philadelphia, February 4, l977.

New Methods in the Management of Colon and Rectal Problems. Luzerne County Medical Society, Wilkes Barre, Pennsylvania, February 9, l977.

New Methods in the Management of Difficult and Demanding Problems of the Colon and Rectum. Fort Lauderdale Medical Society, Fort Lauderdale, Florida, February l7, l977.

Pitfalls and Pratfalls in the Management of Diverticular Disease of the Colon. Mount Sinai Medical Center, Miami Beach, Florida, March l, l977.

Advances in Colonoscopy. Kent General Hospital Continuing Medical Education Seminar, University of Delaware, Dover, Delaware, March 29, l977.

New Methods in the Management of Difficult and Demanding Colorectal Problems: New Twists on Old Turns. Baystate Medical Center, Department of Surgery Guest Speaker, Springfield, Massachusetts, April 2, l977.

Surgical Aspects of Colonoscopy. Surgical Conference, Fitzgerald Mercy Division of Mercy Catholic Medical Center, Darby, Pennsylvania, April 2l, l977.

The Clinical Applications of Fiberoptic Colonoscopy. Carrier Clinic Foundation, Belle Mead, New Jersey, June 23, l977.

Radiation Injured Gut: Surgical Management and Preservation of Anal Sphincter. Fitzsimmons Army Medical Center, Denver, Colorado, September 1, l977.

Radiation Injured Gut: Combined Abdominotranssacral Method. Saint Joseph's Hospital, Denver, Colorado, September 2, l977.

Colorectal Potpourri. Mercy Medical Center, Denver, Colorado, September 2, l977.

Colonoscopy Practiced with a Surgical Conscience. Pennsylvania Society of Colon and Rectal Surgery, Philadelphia, Pennsylvania, September l6, l977.

Colonoscopic Management of Polypoid Disease of the Colon: A Surgeon's Viewpoint. Medical Society of the State of New York, Andersen Memorial Lecture, New York, New York, October 3, l977.

Clinical Application of Flexible Fiberoptic Colonoscopy. Clara Maass Memorial Hospital, Belleville, New Jersey, November 2, l977.

Fiberoptic Colonoscopy in the Total Management of the Patient with Carcinoma of the Colon and Rectum. Mercy Catholic Medical Center, Darby, Pennsylvania, November 9, l977.

Colonoscopy in the Total Management in the Patient with Colorectal Neoplasia. New Jersey Division, American College of Surgeons, Cherry Hill, New Jersey, November 9, l977.

Colonoscopy in the Total Management of Colorectal Neoplasia. Northeastern Proctologic Society, St. Maartens, November 9, l977.

New Methods in the Management of Difficult and Demanding Colorectal Problems. Suburban General Hospital, Norristown, Pennsylvania, November 22, l977.

Techniques and Determinants of Anal Sphincter Preservation. Presbyterian University of Pennsylvania Medical Center, Philadelphia, Pennsylvania, November 28, l977.

Advances in Surgical Management. Symposium of Early Diagnosis and Treatment of Colorectal Cancer, Sarasota, Florida, January 14, l978.

Technique and Application of Combined Abdominotranssacral Approach to Anal Sphincter Preservation. Graduate Hospital, Philadelphia, Pennsylvania, April 5, l978.

Determination of Sphincter Preservation in Cancer of the Rectum. Parkview Hospital, Philadelphia, Pennsylvania, April l2, l978.

Surgical Approach to Radiation Disease of the Bowel. Symposium: Changing Trends in Colorectal Diseases, l978, New England Memorial Hospital, Stoneham, Massachusetts, April l9, l978.

The Acute Abdomen. Training Program for physicians, College of Physicians, Philadelphia, Pennsylvania, May 2, l978.

Treatment of the Radiation Injured Gut. St. Agnes Hospital, Philadelphia, Pennsylvania, May 4, l978.

New Twists on Old Turns in Colorectal Surgery. Carrier Clinic, Belle Mead, New Jersey, June 29, l978.

Changing Concepts in Colorectal Surgery. Veterans Administration Hospital, Wilmington, Delaware, September l4, l978.

The Clinical Challenge of Radiation Injury of Intestinal Tract. Grand Rounds, The Pennsylvania Hospital Philadelphia, Pennsylvania, November 2, l978.

New Methods in Colorectal Surgery. Annual Meeting of the Association of Operating Room Technicians, Philadelphia, Pennsylvania, November 4, l978.

New Methods in the Management of Surgical Colorectal Diseases. Bridgeton Hospital, Bridgeton, New Jersey, November l6, l978.

New Twists on Old Turns in Colorectal Surgery. Grand Rounds, Medical College of Pennsylvania, Philadelphia, Pennsylvania, December l6, l978.

Rational Basis for the Diagnosis of the Acute Abdomen. St. Agnes Medical Center, Philadelphia, Pennsylvania, January l8, l979.

The Technique and Full Application of the Combined Abdominotranssacral Method of Sphincter Preservation in Surgery of the Irradiated and Non-Irradiated Rectum. St. Vincent's Hospital, New York, New York, January 26, l979.

The Technique and Full Application of the Combined Abdominotranssacral Method of Sphincter Preservation in the Irradiated and Non-Irradiated Rectum. The Hahnemann Medical College and Hospital Symposium, King of Prussia, Pennsylvania, March 28-30, l979.

Indications for Surgical Resection in Polypoid Disease of the Colon. Brooklyn Surgical Society, Brooklyn, New York, April l5, l979.

Sphincter Preservation in Surgical Management of Rectal Cancer. Bryn Mawr Hospital, Bryn Mawr, Pennsylvania, April l7, l979.

New Approaches to Colorectal Polyps and Cancer. Middlesex Hospital, New Brunswick, New Jersey, April 25, l979.

Rational Basis for the Diagnosis of the Acute Abdomen. l979 Training Program for Emergency Room Physicians, College of Physicians, Philadelphia, Pennsylvania, May 8, l979.

Full Breadth of Sphincter Preservation by the Combined Abdominotranssacral Method. Department of Surgery, Fitzgerald Mercy Hospital, Darby, Pennsylvania, June 28, l979.

Facing the Challenge of the Radiation Injured Intestine. Einstein Medical Center, Northern Division, Philadelphia, Pennsylvania, June 4, l979.

Facing the Challenge of the Radiation Injured Intestine. Mt. Sinai Hospital, Hartford, Connecticut, July 6, l979.

Workshop on the Use of the Fiberoptic Sigmoidoscope with Models and Scopes. Ibid.

Sphincter Preservation by Combined Abdominotranssacral Approach for Malignant and Non-Malignant Lesions of the Rectum. Lankenau Hospital, Philadelphia, Pennsylvania, August 28, l979.

The Comparative Effectiveness of Fiberoptic and Rigid Sigmoidoscopy. Pennsylvania Society of Gastrointestinal Assistants, Philadelphia, Pennsylvania, September 28, l979.

Abdominotranssacral Method of Sphincter Preservation in Surgery of the Irradiated and Non-Irradiated Rectum. Surgical Grand Rounds, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, September 29, l979.

Combined Abdominotranssacral Resection for Selected Cancers of the Rectum. Surgical Staff of Norwalk General Hospital, Norwalk, Connecticut, December 6, l979.

Changing Concepts in Colorectal Surgery. Solomon Solis-Cohen Medical Literature Society. Philadelphia, Pennsylvania, December ll, l979.

Combined Abdominotranssacral Method of Sphincter Preservation in the Irradiated and Non-Irradiated Rectum. Abington Hospital, Abington, Pennsylvania, January l2, l980.

Rectal Sphincter Preservation in Surgery of the Irradiated and Non-Irradiated Rectum. University of South Florida College of Medicine, Visiting Professor, Department of Gastroenterology, Tampa, Florida, January l6, l980.

Sphincter Preservation in Surgery of the Irradiated and Non-Irradiated Rectum. University of Minnesota, Division of Colorectal Surgery, Minneapolis, Minnesota, February 6, l980.

Management of Radiation Injured Intestine. Miller General Hospital, Minneapolis, Minnesota, February 7, l980.

Guest Discussor. Mt. Sinai Hospital, Minneapolis, Minnesota, February l980.

Flexible Fiberoptic Colonoscopy in the Control of Colorectal Neoplasia. Pottstown Hospital Medical Staff, Pottstown, Pennsylvania, March ll, l980.

Pitfalls in the Management of Diverticular Disease. Delaware County Memorial Hospital, Drexel Hill, Pennsylvania, March 25, l980.

Pitfalls in the Management of Diverticular Disease. The Pennsylvania Hospital, Grand Rounds, Philadelphia, Pennsylvania, May l, l980.

Anatomical and Technical Considerations of Flexible Sigmoidoscopic Examination. College of Medicine and Dentistry of New Jersey, Rutgers Medical School, Pascataway, New Jersey, June l4, l980.

Anatomical and Technical Considerations of Flexible Sigmoidoscopic Examination. Flexible Fiberoptic Sigmoidoscopy Seminar and Workshop, Ibid.

Surgical Treatment of Carcinoma of the Rectum. Mercy Catholic Medical Center, Philadelphia, Pennsylvania, July 9, l980.

Colorectal Cancer. Surgical Service, VA Hospital, Wilmington, Delaware, July 24, l980.

Combined Abdominotranssacral Method for Sphincter Preservation: Its Scope and Technique. Hahnemann Hospital Surgical Grand Rounds, October 28, l980.

Sphincter Preservation in the Surgical Treatment of Cancer of the Rectum. Philadelphia Academy of Surgery, November 3, l980.

Practical Implications of the Comparative Effectiveness of Rigid and Flexible Sigmoidoscopy in l800 Patients. Sixth Annual Rudd Clinic Evening, Toronto, Canada, November 5, l980.

Enlarging the Scope of Sphincter Preservation in the Treatment of Rectal Cancer. Ibid.

Practical Implications of the Comparative Effectiveness of Rigid and Flexible Sigmoidoscopy in l800 Patients. Northeastern Society of Colon and Rectal Surgeons, Cancun, Mexico, November ll, l980.

Enlarging the Scope of Sphincter Preservation in the Treatment of Rectal Cancer. Ibid.

Comparative Effectiveness of Rigid and Flexible Fiberoptic Sigmoidoscopy. Department of Surgery, Mt. Sinai Hospital, Miami Beach, Florida, December 5, l980.

Enlarging the Scope of Sphincter Preservation in the Treatment of Rectal Cancer. New Jersey Chapter, American College of Surgeons, December l980.

Workshop: Flexible Fiberoptic Sigmoidoscopy. Ibid.

New Techniques in the Treatment of Carcinoma of the Rectum. Thomas Jefferson University Hospital Operating Room Nursing Inservice Education, Philadelphia, Pennsylvania, February 5, l98l.

Broadening the Role of Sphincter Preservation for Rectal Cancer by the Use of Adjunctive Radiation Therapy. Mount Sinai Medical Center of Greater Miami, Miami Beach, Florida, February l0, l98l.

Sphincter Saving Operations for Rectal Carcinoma. First Annual Symposium of the Pennsylvania Osteopathic Surgical society, Bethlehem, Pennsylvania, March l4, l98l.

Colon Cancer: Colonoscopic Evaluation. Lamda Omicron National Convention, Tamiment, Pennsylvania, April 5, l98l.

Evaluation and Treatment of Radiation Injured Gut. Frontier Society of Colon and Rectal Surgeons. Buffalo, New York, April ll, l98l.

Adjuvant Radiation Therapy for Carcinoma of the Rectum. Ibid.

Comparative Effectiveness of Rigid vs. Flexible Fiberoptic Sigmoidoscopy. Ibid.

Broadening the Role of Sphincter Preservation for Rectal Cancer Utilizing Adjunctive Radiation Therapy. Presbyterian-University of Pennsylvania Medical Center, Philadelphia, Pennsylvania, April 20, l98l.

The Judgmental Aspects of Colonoscopy in the Management of Colorectal Neoplasia and the Clinical Role of Flexible Fiberoptic Sigmoidoscopy. Central Pennsylvania Gastrointestinal Endoscopic Society, Hershey, Pennsylvania, May 7, l98l.

The Histopathological Effects of Infrared Coagulation upon the Gastrointestinal Tract of the Dog. St. Mark's Hospital, London, England, July 4, l98l.

Broadening the Role of Sphincter Preservation for Rectal Carcinoma Using Adjuvant Radiation Therapy. Surgical Grand Rounds, The Pennsylvania Hospital, Philadelphia, Pennsylvania, September l7, l98l.

Adjunctive Radiation Therapy and Expansion of Sphincter Preservation in the Management of Rectal Carcinoma. Surgical Educational Conference, Crozer Chester Medical Center, Chester, Pennsylvania, October 6, l98l.

Facing the Challenge of the Radiation Injured Gut. 54th Annual Clinical Assembly of Osteopathic Specialists, Boston, Massachusetts, October l8, l98l.

The Benefit and Feasibility of Full-Dose Radiation Therapy for Sphincter Preservation for Rectal Cancer. St. Agnes Hospital, Philadelphia, Pennsylvania, October 22, l98l.

The Radiation Injured Intestine. Jersey Shore Medical Center, Department of Surgery, Neptune, New Jersey, November 12, l98l.

Adjunctive Radiation Therapy Options in the Management of Rectal Cancer. The Graduate Hospital, Philadelphia, Pennsylvania, April l4, l982.

Facing the Challenge of the Radiation Injured Intestine. Surgical Grand Rounds, The Pennsylvania Hospital, Philadelphia, Pennsylvania, November 2, l982.

Facing the Challenge of the Radiation Injured Intestine. Surgical Grand Rounds, Hospital of St. Raphael, New Haven, Connecticut, December l0, l982.

Application of Flexible Fiberoptic Sigmoidoscopy in the Management of Surgical Patients. Surgical Grand Rounds, Medical College of Pennsylvania and Hospital, Philadelphia, Pennsylvania, January 8, l983.

The Role of Colonoscopy and Flexible Sigmoidoscopy in Colorectal Cancer Detection. Philadelphia Occupational Medical Association, Philadelphia, Pennsylvania, October 26, l983.

Options in the Management of Rectal Carcinoma. Medical Grand Rounds, The Pennsylvania Hospital, Philadelphia, Pennsylvania, November 3, l983.

Possibility for Extending Sphincter Preservation in the Management of Rectal Carcinoma. Surgical Grand Rounds, Mercy Catholic Medical Center, Fitzgerald Mercy Division, Darby, Pennsylvania, November 9, l983.

Treatment of Radiation Enteritis. Surgical Grand Rounds, Abington Hospital, Abington, Pennsylvania, December 3, l983.

Preoperative Radiation Therapy for Rectal Cancer. Surgical Grand Rounds, Wilmington Medical Center, January 3l, l984.

Extending the Limits of Sphincter Preservation for Rectal Carcinoma. Philadelphia College of Osteopathic Medicine: Anorectal and Colorectal Diseases Seminar, Philadelphia, Pennsylvania, February 4, l984.

Extending the Limits of Sphincter Preservation for Rectal Carcinoma. Surgical Grand Rounds, Shore Memorial Hospital, Somers Point, New Jersey, March 22, l984.

Sphincter Preservation for Rectal Cancer and the Role of Full Dose Preoperative Radiation Therapy. Nassau County Medical Center, Long Island, New York, March 30, l984.

Flexible Fiberoptic Sigmoidoscopy -- Indications and Use. Ibid.

Extending the Limits of Sphincter Preservation for the Low-Lying and/or Unfavorable Rectal Carcinoma. Surgical Grand Rounds, Morristown, New Jersey, April d2, l984.

Surgical Management of the Radiation Injured Intestine. Thomas Jefferson University Hospital GI Cancer Group, Philadelphia, Pennsylvania, October l7, l984.

Advances in Colorectal Surgery. Solomon Solis-Cohen Medical Literature Society, Philadelphia, Pennsylvania, January 8, l985.

Might There be Magic in Preoperative Radiation Therapy for Rectal Cancer. Surgical Research Seminar, Jefferson Medical College of the Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, January l6, l985.

Assessing the Effect of Preoperative Radiation Therapy upon Local Recurrence and Sphincter Preservation for Rectal Cancer. UMDNJ - Rutgers Medical School at Camden, Camden, New Jersey, January 29, l985.

Preoperative Radiation Therapy for Rectal Carcinoma. Cancer Seminar, Norwalk Hospital, Norwalk, Connecticut, February 28, l985.

Rectal Cancer. The Pennsylvania Hospital Surgical Grand Rounds, Philadelphia, Pennsylvania, April 22, l985.

The Cancer Nobody Talks About. CIGNA Corporation (Sponsored by the American Cancer Society), Philadelphia, Pennsylvania, April 26, l985.

The Role of Adjuvant Radiation Therapy in the Management of Rectal Carcinoma. The Graduate Hospital, Division of Gastroenterology, Philadelphia, Pennsylvania, April 30, l985.

Combined Abdominotranssacral Reconstruction of the Radiation-Injured Rectum. Abington Memorial Hospital, Abington, Pennsylvania, October 29, l985.

Exploring New Options of Sphincter Preservation for Rectal Cancer Utilizing Preoperative Radiation Therapy. Hospital of the University of Pennsylvania, Department of Radiation Therapy, Philadelphia, PA, April 23, 1986.

Flexible Fiberoptic Sigmoidoscopy for the Early Detection and Screening of Colorectal Cancer. 10th Annual Cancer Symposium, Scranton, PA, June 6, 1986.

Preoperative Radiation Therapy and Surgery for Sphincter Preservation. Ibid.

New Options for Sphincter Preservation for Cancer of the Distal Rectum Utilizing Radiation Therapy. Good Samaritan Hospital, Lebanon, PA, June 12, 1986.

Moderator: Pennsylvania Society of Colon and Rectal Surgery, Philadelphia, PA, September 26, 1986

Advances in Colorectal Surgery. 32 Carat Club of Philadelphia "Salute to Medicine," Philadelphia, PA, October 16, 1986.

New Options for Sphincter Preservation in the Treatment of Rectal Cancer. Operating Room Staff, Pennsylvania Hospital, Philadelphia, PA, November 10, 1986.

Screening for Colorectal Cancer--The Preventable Malignancy. Comprehensive Colorectal Cancer Nursing Education Day, Thomas Jefferson University Hospital, Philadelphia, PA, December 3, 1986.

New Horizons in Sphincter Preservation Surgery for Rectal Cancer. Ibid.

New Sphincter Preservation for Rectal Cancer Utilizing Full Dose Preoperative Radiation Therapy. Department of Pathology Grand Rounds, Thomas Jefferson University Hospital, Philadelphia, PA, December 3, 1986.

New Options for Sphincter Preservation in the Management of Rectal Cancer Utilizing Preoperative Radiation Therapy. Surgical Grand Rounds, Morristown Memorial Hospital, Morristown, NJ, June 10, 1987.

Enhancing Survival and Sphincter Function in the Treatment of Rectal Cancer Utilizing Preoperative Radiation Therapy. Westmoreland Radiation and Oncology Center, Greensburg, PA, October 29, 1987.

Extended Use of Sphincter Preservation in the Management of Rectal Cancer Utilizing Full Dose Preoperative Radiation Therapy. Surgical Grand Rounds, Temple University, Philadelphia, PA, April 30, 1988.

Evolution of the Rectal Cancer Management Program: Results of a 13-Year Experience Selectively Utilizing High Dose Preoperative Radiation Therapy and Sphincter Preservation Surgery. Surgical Grand Rounds, Thomas Jefferson University Hospital, Philadelphia, PA January 7, 1989.

Curative Radical Sphincter Preservation Surgery for Rectal Cancer Following High Dose Preoperative Radiation: Results of a Non-Traditional 13-Year Program. Surgical Grand Rounds, Medical College of Pennsylvania, February 11, 1989

The Results of Curative Radical Sphincter Preservation Surgery for Selected Rectal Cancer Utilizing High Dose Preoperative Radiation. Surgical Grand Rounds, Thomas Jefferson University Hospital, Philadelphia, PA, February 18, 1989.

Advances in the Treatment of the Colorectal Cancer Patient. "Comprehensive Care: Treatment of the Colorectal Cancer Patients." Nursing Seminar, Thomas Jefferson University Hospital, Philadelphia, PA, March 28, 1989.

Selective Use of High Dose Preoperative Radiation Therapy and Sphincter Preservation for Rectal Cancer. Surgical Grand Rounds, Lankenau Hospital, Philadelphia, PA, May 23, 1989.

Reasons for New Hope in Rectal Cancer Management. Continuing Medical Education Program of the Gnaden Huetten Memorial Hospital, September 22, 1989.

The Jefferson Program on High Dose Preoperative Radiation and Sphincter Preservation Surgery for Rectal Cancer. Grand Rounds of the Department of Obstetrics and Gynecology, Thomas Jefferson University Hospital, Philadelphia, PA October 26, 1989.

Benefits of High Dose Preoperative Radiation Therapy and Sphincter Preservation for Selected Rectal Cancer. Fourth Annual Smithwick Foundation Symposium, University Hospital, Boston, MA, Friday, November 3, 1989.

The Jefferson Program of High Dose Preoperative Radiation and Sphincter Preservation Surgery for Rectal Cancer: How Unique and How Revolutionary? Grand Rounds of the Department of Pathology, Thomas Jefferson University Hospital, November 8, 1989.

Preop High Dose Radiotherapy in Sphincter Preserving Rectal Cancer: 143 Patients (with Arieh Eitan, M.D. and Mohammed Mohiuddin, M.D.). Meeting of the Pennsylvania Society of Colon and Rectal Surgery, Union League, Philadelphia, PA, May 18, 1990.

Emerging Data Supporting Selective Sphincter Preservation Surgery for Cancer of the Distal Rectum. Surgical Grand Rounds, Graduate Hospital, Philadelphia, Pennsylvania, December 1, 1990.

Surgical Grand Rounds, Veterans Hospital, Wilmington, Delaware, March 1992.

Surgical Grand Rounds, University of Florida, Gainesville, Florida, January 14, 1993.

Surgical Options for Rectal Cancer, Wyoming Medical Center, Jackson Hole, Wyoming, January 30, 1993.

Extending the Limits of Sphincter Preservation Surgery for Rectal Cancer, Jersey Shore Medical Center, Neptune, New Jersey, March 25, 1993

Surgery for Cancer of the Rectum: The Thomas Jefferson Experience, Wheaton Regional Cancer Treatment Center, Millville, New Jersey, April 14, 1993

Colon Polyp Removal: Colonoscopy vs. Resection, Wright State University, Dayton, Ohio, September 29, 1993.

New Options for Sphincter Sparing Surgery. Wright State University, Postgraduate Course, Update: Colorectal Surgery, Dayton, Ohio, September 29, 1993.

Shaking the Tree of Tradition. Cancer Symposium, Grand View Hospital, Sellersville, PA. October 26, 1993

Extending the Limits of Sphincter Preservation Surgery for Rectal Cancer with Selective Preoperative Radiation, Northeastern Society of Colon and Rectal Surgeons. The Breakers Hotel, Palm Beach, Florida, November 8, 1993.

New Methods of Rectal Cancer Management. Lankenau Hospital Grand Rounds, Philadelphia, Pennsylvania, May 31, 1994.

Sphincter Preservation in the Therapy of Rectal Cancer. Presented at Controversies in Surgery III. Sponsored by the Department of Surgery and Continuing Medical Education. Jefferson Medical College, Thomas Jefferson University. Puerto Vallarta, Mexico. January 30-February 3, 1995.

Diagnosis and Treatment Options for Rectal Prolapse. Presented at Controversies in Surgery III. Sponsored by the Department of Surgery and Continuing Medical Education. Jefferson Medical College, Thomas Jefferson University. Puerto Vallarta, Mexico. January 30-February 3, 1995.

The CRCC Experience With Pre-Operative High-Dose Radiation Therapy and Sphincter Preservation Surgery for Rectal Cancer Management. Presented at the Tumor Board Conference, Thomas Jefferson University, May 19, 1995.

Leader of Grand Rounds at York Hospital, Department of Surgery, York, Pennsylvania, August 3, 1995.

New Trends in the Treatment of Rectal Cancer. Visiting Professor and Invited Speaker, University of Kentucky, Lexington, Kentucky, November 3, 1995.

New Hope and Promise for Patients with Low Rectal Cancer. Visiting Professor and Presenter of Grand Rounds, JFK Hospital, University of Medicine & Dentistry, Stratford, New Jersey, November 8, 1995.

Extending the Limits of Sphincter Preservation Surgery for Rectal Cancer: A Two-Decade Experience Utilizing High-Dose Preoperative External Irradiation. Invited Speaker, Holmes Regional Medical Center Oncology Conference, Melbourne, Florida, January 25, 1996.

New Hope and Promise for the Rectal Cancer Patient: Sphincter Preservation Benefits of a Multi-Modality Management Program. Presenter of Grand Rounds, St. Francis Medical Center, Trenton, New Jersey, March 6, 1996.

High-Dose Preoperative External Radiation Therapy and Sphincter Preservation Surgery for Rectal Cancer: A Twenty-Year Experience. Invited Speaker, “Perspectives in the Diagnosis and Management of Colorectal Carcinoma.” Southeastern Wisconsin Cancer Conference sponsored by the American Cancer Society, March 30, 1996.

Extending the Limits of Sphincter Preservation Surgery for Rectal Cancer: A Two-Decade Experience Utilizing High-Dose Preoperative External Irradiation. Presenter of Grand Rounds, Medical College of Pennsylvania, Philadelphia, Pennsylvania, May 4, 1996.

Surgical Societies and the Corporate Sector. Board Meeting of the American Society of General Surgeons, San Francisco, California, October 9, 1996.

Innovations in Rectal Cancer Management. Advances in Radiation Oncology, Brady Cancer Research Institute, Philadelphia, Pennsylvania, September 27, 1997.

Extending the Limits of Sphincter Preservation Surgery for Rectal Cancer Utilizing High Dose Preoperative Irradiation. Meeting of the Pittsburgh Colon and Rectal Society, Pittsburgh, Pennsylvania, October 6, 1997.

Maximizing Sphincter Preservation for Cancer of the True Rectum by the Use of High-Dose Preoperative External Irradiation. Presenter of Grand Rounds, St. Luke’s Hospital, Bethlehem, Pennsylvania, April 22, 1998.

Rectal Cancer: The Impact of High-Dose Preoperative Irradiation and Sphincter Preservation Surgery on Distal Surgical Margins. Poster presentation at Lankenau Medical Research Center Poster Day, Lankenau Hospital, Wynnewood, PA, February 16, 1999.

The Prognostic Implications of the Post-Radiated Stage pT0 Rectal Cancer. Poster presentation at Lankenau Institute for Medical Research Poster Day, Lankenau Hospital, Wynnewood, Pennsylvania, March 8, 2000.

Measuring the Benefits of Select Preoperative Irradiation and Extended Sphincter Preservation Surgery for Rectal Cancer. Presenter of Grand Rounds, Carolinas Medical Center, Charlotte, North Carolina, April 30, 1999.

A Multidisciplinary Approach to the Rectal Cancer Patient: Maximizing Quality-of-Life Benefits of Sphincter Preservation and Survival. Presenter of Grand Rounds, Sarasota Memorial Hospital, Sarasota, Florida, April 28, 2000.

Further Observations on the Power of Preoperative Radiation for Rectal Cancer. Presenter of Grand Rounds, Easton Hospital, Easton, Pennsylvania, May 12, 2000.

Maximizing Sphincter Preservation for Cancer of the True Rectum by the Use of High-Dose Preoperative External irradiation. Presenter of Grand Rounds, Carilion Roanoke Memorial Hospital, Roanoke, Virginia, May 20, 2000.

As of June 2000