E.R. MEKHTIEVA, I.I. MUSIN, A.G. YASCHUK, A.A. TYURINA, A.G. IMELBAEVA  Bashkir State Medical University of the Ministry of Health of Russia, Ufa  Contact details: Mekhtieva E.R. — Assistant Lecturer of the Department of Obstetrics and Gynecology Address: 3 Lenin St., Ufa, Russian Federation, 450008, tel.: +7-919-606-98-85, e-mail: elvirochka-azn@mail.ru  An urgent problem at present is an […]