title: Duodenal ulcer as a cause of duodenocolic fistula: a case report and review of literature.
mesh_terms: D003108:Colonic 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; D008875:Middle Aged