New steps to detect sleep apnea before surgery.
D045422:Continuous Positive Airway Pressure / Q000592:standards*; D006801:Humans; D059035:Perioperative Period; D020181:Sleep Apnea, Obstructive / Q000150:complications* / Q000175:diagnosis / Q000628:therapy; D012913:Snoring / Q000209:etiology*; D013514:Surgical Procedures, Operative / Q000009:adverse effects*