title: Choledochoduodenal fistula: a rare complication of duodenal ulcer.
mesh_terms: D000328:Adult; D001658:Biliary Fistula / Q000209:etiology*; D003137:Common Bile Duct Diseases / Q000209:etiology*; D004378:Duodenal Diseases / Q000209:etiology*; D004381:Duodenal Ulcer / Q000150:complications*; D006801:Humans; D008297:Male; D010439:Peptic Ulcer Perforation / Q000150:complications