Gastrointestinal hemorrhage as a postoperative phenomenon.
D001778:Blood Coagulation Disorders / Q000150:complications; D005767:Gastrointestinal Diseases / Q000601:surgery*; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D006801:Humans; D008641:Mesenteric Vascular Occlusion / Q000150:complications; D009336:Necrosis; D011183:Postoperative Complications; D013312:Stress, Physiological; D014456:Ulcer / Q000150:complications