title: An unusual complication of gastric bypass: perforated antral ulcer.
mesh_terms: D000005:Abdomen; D000328:Adult; D005260:Female; D006801:Humans; D009765:Obesity / Q000628:therapy*; D010146:Pain / Q000209:etiology; D010439:Peptic Ulcer Perforation / Q000209:etiology* / Q000601:surgery; D011183:Postoperative Complications; D011706:Pyloric Antrum; D013270:Stomach / Q000601:surgery*; D013276:Stomach Ulcer / Q000209:etiology* / Q000601:surgery