The hearing impaired in state institutions for the retarded: I. Prevalence, characteristics, and diagnosis.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003638:Deafness / Q000150:complications*; D006801:Humans; D008607:Intellectual Disability / Q000150:complications*; D008875:Middle Aged; D012112:Residential Facilities; D014481:United States