title: [Epidemiology of mental retardation. Preliminary results of a field study in Mannheim].
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D005860:Germany, West; D006801:Humans; D008607:Intellectual Disability / Q000145:classification / Q000453:epidemiology*; D008297:Male; D012737:Sex Factors
vernacular_title: Zur Epidemiologie der geistigen Behinderung. Vorläufige Ergebnisse einer Felderhebung in Mannheim.