title: [Effect of parental age on the occurrence of Down's syndrome in newborn infants].
mesh_terms: D004314:Down Syndrome / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008423:Maternal Age; D010331:Paternal Age; D011044:Poland; D012306:Risk
vernacular_title: Wpływ wieku rodziców na ryzyko urodzenia dziecka z zespołem Downa.