title: [Prognosis of the frequency of Down's syndrome in relation to the median age of the parturient and the use of this indicator].
authors: A N
authors: AN
authors: Chebotarev
authors: I N
authors: IN
authors: Lunga
authors: G V
authors: GV
authors: Smirnova
mesh_terms: D004314:Down Syndrome / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D011379:Prognosis; D012426:Russia / Q000453:epidemiology
vernacular_title: Prognozirovanie chastoty sindroma Dauna v zavisimosti ot srednogo vozrasta rozhenits i ispol'zovanie étogo pokazatelia.