R.S. ZAMALEEVA1, V.K. LAZAREVA1, N.A. CHEREPANOVA2, A.V. FRIZINA2, M.E. ZHELEZOVA3  1Kazan State Medical Academy, 51 Bolshaya Krasnaya St., Kazan, Russian Federation 420015 2Volzhsk Central Clinical Hospital, 6 Krylova St., Volzhsk, Russian Federation 3Republican Clinical Hospital № 2, 1а Chekhova St., Kazan, Russian Federation 420043 Zamaleeva R.S. — D. med. Sc., Professor of the Department of Obstetrics and Gynaecology № 1, tel. (843) 236-46-41,e-mail: zamaleewa@rambler.ru1 Lazareva […]