title: Status praesens of psychological research in mental deficiency.
mesh_terms: D005380:Financing, Government; D006801:Humans; D008607:Intellectual Disability / Q000209:etiology; D009316:National Institutes of Health (U.S.); D011584:Psychology / Q000193:education; D012106:Research; D012109:Research Support as Topic; D014481:United States