Mentally handicapped persons.
D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006233:Persons with Disabilities; D004495:Education of Persons with Intellectual Disabilities; D005190:Family; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000175:diagnosis / Q000235:genetics; D007361:Intelligence Tests; D008297:Male; D010290:Parents