title: Introduction: a demographic overview of severe and profound mental retardation.
mesh_terms: D001741:Black or African American; D005581:Foster Home Care; D006630:Hispanic or Latino; D006760:Hospitalization; D006801:Humans; D007326:Institutionalization; D008607:Intellectual Disability / Q000453:epidemiology* / Q000401:mortality / Q000628:therapy; D012917:Social Adjustment; D014481:United States; D044465:White People