[Surgical indications in gastroduodenal ulcer].
D006801:Humans; D010437:Peptic Ulcer / Q000601:surgery*; D010438:Peptic Ulcer Hemorrhage / Q000601:surgery*; D010439:Peptic Ulcer Perforation / Q000601:surgery*
Indicaciones quirúrgicas de la ulcera gastroduodenal.