title: Mental retardation in children. I. An etiological study of 303 cases.
mesh_terms: D001720:Birth Injuries / Q000150:complications; D002648:Child; D002675:Child, Preschool; D000013:Congenital Abnormalities / Q000150:complications; D004660:Encephalitis / Q000150:complications; D005260:Female; D006801:Humans; D007194:India; D007223:Infant; D008607:Intellectual Disability / Q000209:etiology*; D008297:Male; D008581:Meningitis / Q000150:complications; D008661:Metabolism, Inborn Errors / Q000150:complications; D010865:Pilot Projects