The Growth of Gastroenterologic Knowledge During the Twentieth Century

absorption acid action activity acute alcohol animals antigen appears associated bacteria bile bile acids bismuth blood bowel cancer cause cells century changes chronic Clin clinical colon concept Crohn's disease demonstrated described determined developed diagnosis diet digestion disease dogs duodenal ulcer early effects enteric esophageal et al evidence experimental experiments factor findings function gallstones gastric gastritis Gastroenterology gastrointestinal glucose hepatitis human immune important increased infection isolated jejunum large intestine later liver major mechanisms membrane ment methods motility mucosa muscle nature neurons normal observations occur operation organ pain pancreatic patients peptic ulcer peristaltic Physiol physiology possible potential present production protein receptor recognized reported response role secretion showed small intestine specific stimulation stomach structure studies subsequent Surg surgery symptoms syndrome technique tion tract transport treatment ulcerative colitis York