Parasympathetic activity is reduced during slow-wave sleep, but not resting wakefulness, in patients with chronic fatigue syndrome Parasympathetic activity is reduced during slow-wave sleep, but not resting wakefulness, in patients with chronic fatigue syndrome Download Older adult US Medicare beneficiaries with untreated obstructive sleep apnea are heavier users of health care than matched control patients Predictors of postoperative respiratory complications in children undergoing adenotonsillectomy