Nocturnal deaths among patients with chronic bronchitis and emphysema.
D000368:Aged; D001991:Bronchitis / Q000150:complications*; D002908:Chronic Disease; D003645:Death, Sudden / Q000209:etiology*; D004646:Emphysema / Q000150:complications*; D005260:Female; D006801:Humans; D008297:Male; D012890:Sleep; D013997:Time Factors