title: Choledochoduodenal fistula: an unusual complication of duodenal ulcer disease.
mesh_terms: D000328:Adult; D001658:Biliary Fistula / Q000209:etiology* / Q000601:surgery; D003137:Common Bile Duct Diseases / Q000209:etiology* / Q000601:surgery; D004378:Duodenal Diseases / Q000209:etiology* / Q000601:surgery; D004381:Duodenal Ulcer / Q000150:complications*; D006801:Humans; D007412:Intestinal Fistula / Q000209:etiology* / Q000601:surgery; D008297:Male