Chronic respiratory disease among old people in a Finnish rural area.
D000368:Aged; D000375:Aging; D001249:Asthma / Q000453:epidemiology*; D001991:Bronchitis / Q000453:epidemiology*; D002908:Chronic Disease; D005260:Female; D005387:Finland; D006801:Humans; D008297:Male; D011656:Pulmonary Emphysema / Q000453:epidemiology*; D012907:Smoking