S.A. RYABOVA1, A.V. PRIKHOD’KO1, Y.V. TEZIKOV1, I.S. LIPATOV1, N.A. KRASNOVA1, O.B. KALINKINA1, L.N. KHUDYAKOVA2 1Samara State Medical University, 89 Chapayevskaya Str., Samara, Russian Federation, 443099 2Samara Regional Clinical Hospital named after V.D. Seredavin, 159 Tashkentskaya Str., Samara, Russian Federation, 443095 Ryabova S.A. — post-graduate student of the Department of Obstetrics and Gynecology No 1, tel. […]