T.P. ZEPHIROVA1, I.Kh. SABIROV2, R.S. ZAMALEEVA1, M.E. ZHELEZOVA1 1Kazan State Medical Academy, 36 Butlerov St., Kazan, Russian Federation, 420012 2Republican Clinical Hospital №2, 1a Chekhov St., Kazan, Russian Federation, 420013 Zephirova T.P. ― D. Med. Sc., Professor of the Department of Obstetrics and Gynecology №1, tel. +7-987-290-45-99, e-mail: [email protected] Sabirov I.Kh. ― obstetrician-gynecologist of the […]