A survey of hearing loss in Vancouver school children. I. Methodology and prevalence.
D000293:Adolescent; D001299:Audiometry; D001955:British Columbia; D002648:Child; D003638:Deafness / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D010033:Otitis Media / Q000453:epidemiology*; D044469:Racial Groups; D012572:School Health Services; D012723:Sex; D012959:Socioeconomic Factors; D013223:Statistics as Topic