V.V. BLINOVA1, T.M. BOGDANOVA1, A.S. KANSHINA1, E.V. LITVINOVA1, M.A. ZANKIN1, V.A. SEMENOVA1, M.S. SINKEEV1 1Saratov State Medical University, Saratov  Contact details: Blinova V.V. — PD (medicine), Associate Professor of the Department of Propaedeutics of Internal Diseases Address: 112 Bolshaya Kazachya St., Saratov, Russian Federation, 410012, tel.: +7-906-302-45-94, e-mail: blinowa.viky@yandex.ru  The purpose — to present a literature […]