Gastrointestinal hemorrhage after abdominal aortic operations.
D001011:Aorta / Q000601:surgery*; D001012:Aorta, Abdominal; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006470:Hemorrhage; D006801:Humans
AORTA/surgery; HEMORRHAGE, GASTROINTESTINAL/etiology