T.E. KURMANBAYEV1, N.V. YAKOVLEV1,2, A.A. KHASANOV1, I.G. MUSTAFIN1, R.M. NABIULLINA1 1Kazan State Medical University, 49 Butlerov Str., Kazan, Russian Federation, 4200122Republican Clinical Hospital of the MH of RT, 138 Orenburgskiy Trakt, Kazan, Russian Federation, 420064 Kurmanbayev T.E. ― postgraduate student of the Department of Obstetrics and Gynecology №1, tel. +7-919-623-23-35, e-mail: timka_rus@inbox.ru Yakovlev N.V. ― […]