Sleep-disordered breathing.
D006801:Humans; D007040:Hypoventilation / Q000209:etiology; D000860:Hypoxia / Q000209:etiology; D008875:Middle Aged; D012119:Respiration; D012890:Sleep / Q000502:physiology; D012891:Sleep Apnea Syndromes / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy; D012895:Sleep, REM / Q000502:physiology