Play therapy with institutionalized mentally retarded children.
D002674:Child, Institutionalized; D003071:Cognition; D006801:Humans; D008607:Intellectual Disability / Q000628:therapy*; D007804:Language Development; D009048:Motor Skills; D009629:Person-Centered Psychotherapy; D010989:Play Therapy; D011582:Psychological Theory; D011615:Psychotherapy, Group; D012917:Social Adjustment; D012919:Social Behavior