A.R. AZAMATOV, Yu.V. TEZIKOV, I.S. LIPATOV, O.B. KALINKINA Samara State Medical University of the Ministry of Health of the Russian Federation, Samara  Contact: Azamatov A.R. ― postgraduate student of the Department of Obstetrics and Gynecology No. 1 Address: 89 Chapaevskaya Str., 4430099, Samara, Russian Federation, tel. +7-927-90-60-332, e-mail: azamatov.amir@yandex.ru  Objective. To conduct a comparative analysis […]