T.P. ZEFIROVA1, M.E. ZHELEZOVA1, I.I. AKHMETSHINA2 1KSMA – Branch Campus of the FSBEI FPE RMACPE MOH Russia, 36 Butlerov Str., Kazan, Russian Federation, 420012 2Municipal Clinical hospital №7, 54 Chykov Str., Каzan, Russian Federation, 420103 Zefirova T.P. ― D. Sc. (medicine), Professor of the Department of Obstetrics and Gynecology №1, e-mail: [email protected], ORCID ID: 0000-0001-6785-6063 […]