%0 Journal Article %T The structure and incidence of preterm birth in nulliparous women %A Kuzibaeva, R.. %A Khadartseva, K.. %K risk factors, causes, incidence of preterm birth in nulliparous, ultrasound assessment, transvaginal measurement of cervical length, screening. %J Journal of New Medical Technologies. eJournal %D 2015 %N 9 %P 0 %I INFRA-M Academic Publishing LLC.