title: Massive lower gastrointestinal bleeding after small-bowel bypass.
mesh_terms: D000328:Adult; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D007082:Ileum / Q000601:surgery*; D007583:Jejunum / Q000601:surgery*; D009765:Obesity / Q000628:therapy*; D011183:Postoperative Complications