A.O. POZDNYAK1, O.S. ELSUKOVA2, E.A. NIKITINA2 1Kazan State Medical Academy – Branch Campus of the FSBEI FPE RMACPE MOH Russia, Kazan 2Kirov State Medical University, Kirov, Russia   Contact: Nikitina Elena Aleksandrovna – Ph. D. (medicine), Associate Professor of the Department of Internal Diseases Address: 112 K. Marx Str., Kirov, Russian Federation, 610027, tel.: +7-953-687-18-44, e-mail: […]