Framework for the future. The 1997 Gerald Marks Lecture. Society of American Gastrointestinal Endoscopic Surgeons (SAGES). March 22, 1997.
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Department of Surgery, Abington Memorial Hospital, PA 19001, USA.
D016099:Endoscopy, Gastrointestinal / Q000266:history; D049673:History, 20th Century; D006801:Humans; D012955:Societies, Medical / Q000266:history / Q000458:organization & administration*; D014481:United States