Hearing impairments in school children and their causes; a survey of 1426 primary school children.
D002648:Child; D003638:Deafness / Q000209:etiology*; D034381:Hearing Loss; D006801:Humans
DEAFNESS/etiology and pathogenesis; DEAFNESS/in children
Hörselnedsättningar hos skolbarn oc3n deras orsaker; en undersökning av 1426 folkskolebarn.