[Frequency of chronic bronchitis in children. 2. Results of an epidemiologic study during school entrance examinations].
D001991:Bronchitis / Q000453:epidemiology*; D002648:Child; D002908:Chronic Disease; D005260:Female; D005859:Germany, East; D006801:Humans; D008297:Male; D012572:School Health Services
Häufigkeit der chronischen Broncitis im Kindesalter. 2. Ergebnisse einer epidemiologischer Studie bei Einschulungsuntersuchungen.