Program of the Annual Meeting of the American Gastroenterological Association, the American Association for the Study of Liver Diseases, the Gastroenterology Research Group, the Society for Surgery of the Alimentary Tract, and the American Society for Gastrointestinal Endoscopy
1990 ◽
Vol 98
(5)
◽
pp. P1-P88
Program of the Annual Meeting of the American Gastroenterological Association, The American Association for the Study of Liver Disease, and the Gastroenterology Research Group