Previous contact and choice of mental retardation versus speech and hearing major.
D001364:Awareness; D002321:Career Choice; D003071:Cognition; D012048:Correction of Hearing Impairment; D003657:Decision Making; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics; D008297:Male; D012923:Social Class; D013064:Speech Disorders / Q000534:rehabilitation*; D014838:Volunteers