title: Endoscopic diagnosis of upper gastrointestinal tract bleeding from a duodenal diverticulum.
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D004240:Diverticulum / Q000150:complications / Q000175:diagnosis*; D004378:Duodenal Diseases / Q000150:complications / Q000175:diagnosis*; D004384:Duodenoscopy; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male