title: The acute abdomen in the elderly.
mesh_terms: D000005:Abdomen; D000006:Abdomen, Acute / Q000175:diagnosis / Q000601:surgery; D000368:Aged; D006471:Gastrointestinal Hemorrhage; D006801:Humans; D007415:Intestinal Obstruction; D010146:Pain; D011183:Postoperative Complications