Prevalence of pulmonary sarcoidosis in Czechoslovakia.
D000293:Adolescent; D000328:Adult; D000368:Aged; D003604:Czechoslovakia; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D012507:Sarcoidosis / Q000453:epidemiology*