Acute postsurgical syndromes.
D000137:Acid-Base Imbalance / Q000209:etiology; D000208:Acute Disease; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D007415:Intestinal Obstruction / Q000209:etiology; D010538:Peritonitis / Q000209:etiology; D011183:Postoperative Complications