T.G. DENISOVA1, 2, A.E. SIDOROV1, A.A. BADEM2, S.S. ZHAMLIKHANOVA1, T.N. SIDOROVA1, E.A. DENISOVA1  1Chuvash State University named I.N. Ulyanov, Cheboksary 2Mari El State University, Yoshkar-Ola Contact details: Denisova T.G, MD, Professor, Head of the Department of Pediatrics, Obstetrics and Gynecology Address: 39 Michmana Pavlova, 428034 Cheboksary, Russian Federation, tel.: +7-905-197-37-07, e-mail: tomadenisova@rambler.ru The article provides a […]