Mental retardation in the United States: assessment, program development, and applied research.
D004495:Education of Persons with Intellectual Disabilities; D004785:Environmental Pollutants / Q000633:toxicity; D006806:Human Rights; D006801:Humans; D008607:Intellectual Disability / Q000175:diagnosis* / Q000209:etiology / Q000534:rehabilitation; D007361:Intelligence Tests; D008605:Mental Health Services; D009313:National Health Programs; D009938:Organizations; D011788:Quality of Life; D012306:Risk; D014481:United States
D004785:Environmental Pollutants