[Prevalence of chronic bronchitis in the population of an urban industrial agglomeration (author's transl)].
D000328:Adult; D001991:Bronchitis / Q000453:epidemiology*; D002908:Chronic Disease; D003604:Czechoslovakia; D006801:Humans; D008297:Male; D008875:Middle Aged; D014505:Urban Population
Výskyt chronické bronchitidy u obyvatel mĕstské průmyslové aglomerace