The backward child.
D002648:Child; D003409:Congenital Hypothyroidism / Q000150:complications; D004314:Down Syndrome / Q000150:complications; D004495:Education of Persons with Intellectual Disabilities; D006699:Home Care Services; D006801:Humans; D008607:Intellectual Disability / Q000145:classification / Q000209:etiology / Q000628:therapy; D007360:Intelligence; D007361:Intelligence Tests; D007647:Kernicterus / Q000150:complications; D008661:Metabolism, Inborn Errors / Q000150:complications / Q000175:diagnosis