Auditory screening of four-year-old children.
D001299:Audiometry; D002675:Child, Preschool; D004427:Ear Diseases / Q000175:diagnosis; D005260:Female; D006306:Health Surveys; D006311:Hearing Disorders / Q000175:diagnosis* / Q000453:epidemiology; D006801:Humans; D008297:Male; D008403:Mass Screening