The National Speech and Hearing Survey: preliminary results.
D002648:Child; D002675:Child, Preschool; D005260:Female; D006306:Health Surveys; D006311:Hearing Disorders / Q000453:epidemiology*; D006320:Hearing Tests; D006801:Humans; D008297:Male; D012572:School Health Services; D013064:Speech Disorders / Q000175:diagnosis / Q000453:epidemiology*; D014481:United States