A.A. NASYBULLINA, O.V. BULASHOVA, E.V. KHAZOVA, V.M. GAZIZYANOVA, M.I. MALKOVA Kazan State Medical University, 49 Butlerov St., Kazan, Russian Federation, 420012 Nasybullina A.A. — postgraduate student of the Department of Propaedeutics of Internal Diseases, tel. +7-987-267-25-59, e-mail: [email protected] Bulashova O.V. — D. Med. Sc., Professor of the Department of Propaedeutics of Internal Diseases, tel. (843) […]