Enteroduodenal fistulas in Crohn's disease.
D003424:Crohn Disease / Q000150:complications*; D004378:Duodenal Diseases / Q000209:etiology*; D006801:Humans; D007077:Ileal Diseases / Q000209:etiology*; D007412:Intestinal Fistula / Q000209:etiology*; D008297:Male; D008875:Middle Aged