Symbolic play in severely mentally retarded and in autistic children.
D000293:Adolescent; D000342:Affective Symptoms / Q000150:complications; D001321:Autistic Disorder / Q000150:complications*; D002648:Child; D002675:Child, Preschool; D004314:Down Syndrome / Q000150:complications; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000150:complications*; D007360:Intelligence; D007804:Language Development; D008297:Male; D009043:Motor Activity; D010988:Play and Playthings; D011379:Prognosis; D012744:Sex Ratio; D012919:Social Behavior; D013239:Stereotyped Behavior