R.I. GABIDULLINA1, G.A. SMIRNOVA1, A.SH. ZARIPOVA1, E.V. VALEEVA1, T.N. SHIGABUTDINOVA2, L.I. SIRMATOVA2  1Kazan State Medical University, Kazan 2City Clinical Hospital No. 7, Kazan  Contact details: Gabidullina R.I. — MD, Professor of the Department of Obstetrics and Gynecology named after V.S. Gruzdev Address: 49 Butlerov St., Kazan, Russian Federation, 420012, tel.: +7-917-28-99-310, e-mail: ru.gabidullina@yandex.ru The purpose — […]