1999 Scientific Session of the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES). San Antonio, Texas, USA. March 24-27, 1999. Abstracts.
D004724:Endoscopy; D016099:Endoscopy, Gastrointestinal; D005767:Gastrointestinal Diseases / Q000175:diagnosis / Q000601:surgery*; D006801:Humans