title: [Epidemiology of Down's syndrome (trisomy 21)].
mesh_terms: D000328:Adult; D004314:Down Syndrome / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008423:Maternal Age; D008875:Middle Aged; D018566:Pregnancy, High-Risk
vernacular_title: Poznámky k epidemiologii Downova syndromu (trisomie 21).