Preoperative evaluation of patients with duodenal ulcer.
D004381:Duodenal Ulcer / Q000150:complications / Q000601:surgery*; D006801:Humans; D010148:Intractable Pain; D010347:Patient Care Planning; D010438:Peptic Ulcer Hemorrhage / Q000601:surgery; D010439:Peptic Ulcer Perforation / Q000601:surgery; D011300:Preoperative Care; D011707:Pyloric Stenosis / Q000601:surgery