Education of subnormal children.
D000293:Adolescent; D000328:Adult; D002648:Child; D002653:Child Behavior Disorders / Q000209:etiology; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000150:complications / Q000453:epidemiology; D008297:Male; D012846:Singapore