[Occurence of secretory otitis media in school children 7--8 years old].
D002648:Child; D005260:Female; D005387:Finland; D006801:Humans; D006967:Hypersensitivity / Q000150:complications; D008297:Male; D010033:Otitis Media / Q000453:epidemiology*; D010034:Otitis Media with Effusion / Q000453:epidemiology*; D012141:Respiratory Tract Infections / Q000150:complications
Sekretorisen otitis median esiintyminen 7--8-vuotiailla koululaisilla.