Bleeding duodenal ulcer in elderly patients.
D000328:Adult; D000368:Aged; D001161:Arteriosclerosis / Q000150:complications; D001803:Blood Transfusion; D004381:Duodenal Ulcer / Q000150:complications*; D006801:Humans; D008875:Middle Aged; D010438:Peptic Ulcer Hemorrhage / Q000209:etiology / Q000601:surgery / Q000628:therapy; D011708:Pylorus / Q000601:surgery; D014628:Vagotomy