Gastric bypass operation for the treatment of morbid obesity.
D004381:Duodenal Ulcer / Q000209:etiology; D005763:Gastroenterostomy; D006801:Humans; D009765:Obesity / Q000628:therapy*; D010439:Peptic Ulcer Perforation / Q000209:etiology; D011183:Postoperative Complications / Q000209:etiology