RESULTS OF FETAL ULTRASOUND IMAGING AND DOPPLER ULTRASOUND STUDY DEPENDING ON THE FACTORS OF PERINATAL RISK IN PRETERM BIRTH СтатьяOrazmuradov A.A., Konnon S.R., Khubetsova M.T., Savenkova I.V., Minaeva A.V., Novginov D.S., Kretsu V.N., Lukaev A.A.International Journal of Biomedicine. Том 8. 2018. С. 42-46