title: Gastrointestinal hemorrhage from a duodenal diverticulum.
mesh_terms: D004240:Diverticulum / Q000150:complications*; D004378:Duodenal Diseases / Q000150:complications*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged