L.I. MALTSEVA¹, E.N. VASILEVA² Kazan State Medical Academy, 11 Mushtari St., Kazan, Russian Federation 420012 Extension Course Institute for Medical Practitioners of the Ministry of Health, 3 Krasnaya Ploshchad, Cheboksary, Russian Federation 428032 Maltseva L.I. — D.Med.Sc., Head of the Department of Obstetrics and Gynecology № 1, tel. (843) 236-46-41, e-mail: laramalc@mail.ru¹ Vasileva E.N. — D.Med.Sc., assistant professor […]