Polysomnographic Determinants of Nocturnal Hypercapnia in Patients with Sleep Apnea Polysomnographic Determinants of Nocturnal Hypercapnia in Patients with Sleep Apnea Download Obstructive Sleep Apnea During Rapid Eye Movement Sleep, Daytime Sleepiness, and Quality of Life in Older Men in Osteoporotic Fractures in Men (MrOS) Sleep Study Sleep in Childhood Neurological Disorders