title: Mental retardation: an early subspecialty in psychiatric nursing.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008607:Intellectual Disability / Q000451:nursing*; D008297:Male; D008605:Mental Health Services / Q000266:history / Q000592:standards*; D010344:Patient Advocacy; D010348:Patient Care Team; D011568:Psychiatric Nursing; D013041:Specialties, Nursing; D014481:United States