A.G. YASHCHUK, A.V. MASLENNIKOV, A.A. SHIRYAEV Bashkir State Medical University, 3 Lenin St., Ufa, Russian Federation, 450000  Yashchuk A.G. ― D. Med. Sc., Professor, Head of the Department of Obstetrics and Gynecology №2, tel. +7-917-343-17-15, e-mail: [email protected] Maslennikov A.V. ― Cand. Med. Sc., Associate Professor of the Department of Obstetrics and Gynecology №2, tel. +7-903-351-84-22, […]