S.D. MAYANSKAYA1, N.Z. DAVLYATSHINA1, E.V. MAYKOVA2, M.V. TIKHOMIROVA2, N.N. MAYANSKAYA1, O.A. KRAVTSOVA2  1Kazan State Medical University, 39 Butlerov Str., Kazan, Russian Federation, 420012 2Kazan (Volga Region) Federal University, 18 Kremlevskaya Str., Kazan, Russian Federation, 420008 Mayanskaya S.D. ― D. Med. Sc., Professor of the Department of Hospital Therapy, tel. +7-905-316-99-66, e-mail: [email protected] Davlyatshina N.Z. ― […]