Postoperative respiratory complications.
D011014:Pneumonia / Q000628:therapy*; D011030:Pneumothorax / Q000628:therapy*; D011183:Postoperative Complications; D001261:Pulmonary Atelectasis / Q000628:therapy*; D011655:Pulmonary Embolism / Q000209:etiology*; D012131:Respiratory Insufficiency / Q000628:therapy*