E.S. BODRYAGINA, Z.M. NAZIPOVA, I.V. GORELKIN, D.I. ABDULGANIEVA Kazan State Medical University, 49 Butlerova Str., Kazan, Russian Federation, 420012 Bodryagina E.S. ― Cand. Med. Sc., Assistant Professor of the Department of Hospital Therapy, tel. (843) 237-32-61, e-mail: [email protected] Nazipova Z.M. ― student of  the Department of general medicine, tel. +7-905-376-21-36, e-mail: [email protected] Gorelkin I.V. ― […]