title: The prevalence of speech and language impairments.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007806:Language Disorders / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D013064:Speech Disorders / Q000453:epidemiology*; D014481:United States