Phenylketonuria: a survey of institutions for the mentally retardates.
D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006306:Health Surveys; D006801:Humans; D007194:India; D008607:Intellectual Disability / Q000209:etiology*; D008297:Male; D010661:Phenylketonurias / Q000453:epidemiology*