Quadrennial review: world congresses. Gastroenterology (OMGE) 8th congress. Digestive endoscopy (OMED) 6th congress. Colo-proctology 3rd congress. São Paulo, Brazil, September 7-12, 1986.
D004066:Digestive System Diseases / Q000175:diagnosis; D004724:Endoscopy; D006801:Humans