title: [Appearance of children and adolescents with Down's syndrome (mongolism) in special schools for mentally retarded].
mesh_terms: D000293:Adolescent; D000328:Adult; D001604:Berlin; D002648:Child; D004314:Down Syndrome / Q000453:epidemiology*; D004495:Education of Persons with Intellectual Disabilities; D005860:Germany, West; D006801:Humans; D012574:Schools; D011795:Surveys and Questionnaires
vernacular_title: Die Häufigkeit des Auftretens von Kindern und Jugendlichen mit Down-Syndrom (Mongolismus) in Sonderschulen für geistig Behinderte