title: Choledochoduodenal fistula: an unusual complication of duodenal ulcer disease.
mesh_terms: D001658:Biliary Fistula / Q000209:etiology*; D003137:Common Bile Duct Diseases / Q000209:etiology*; D004378:Duodenal Diseases / Q000209:etiology*; D004381:Duodenal Ulcer / Q000150:complications*; D005260:Female; D006801:Humans; D007412:Intestinal Fistula / Q000209:etiology*; D008875:Middle Aged