Elective surgery for treatment of hemorrhage from duodenal ulcer.
D004381:Duodenal Ulcer / Q000150:complications / Q000601:surgery*; D005500:Follow-Up Studies; D005743:Gastrectomy; D006801:Humans; D008875:Middle Aged; D010438:Peptic Ulcer Hemorrhage / Q000150:complications / Q000453:epidemiology / Q000601:surgery*; D011183:Postoperative Complications; D014628:Vagotomy