title: Results of endoscopic papillotomy: a collective experience from nine endoscopic centers in West Germany.
mesh_terms: D000368:Aged; D014670:Ampulla of Vater / Q000601:surgery*; D002779:Cholestasis / Q000209:etiology; D004724:Endoscopy; D042882:Gallstones / Q000601:surgery*; D006801:Humans