Metabolic faults and mental retardation.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008607:Intellectual Disability / Q000209:etiology*; D008661:Metabolism, Inborn Errors / Q000150:complications*; D008875:Middle Aged