title: [Frequency of multiple birth in a group of 240,025 deliveries].
mesh_terms: D003604:Czechoslovakia; D005260:Female; D006801:Humans; D011247:Pregnancy; D011272:Pregnancy, Multiple; D013223:Statistics as Topic; D014427:Twins
vernacular_title: Frekvence vícecetných porodů ze souboru 240025 porodů.