N.I. BEYLINA, R.M. GAZIZOV, A.O. POZDNYAK  Kazan State Medical Academy — Branch Campus of the FSBEI FPE RMACPE MOH Russia, Kazan  Contact details: Beylina N.I. — PhD (medicine), Associate Professor of the Department of Therapy, Geriatrics and Family Medicine Address: 36 Butlerov St., Kazan, Russian Federation, 420012, tel.: +7-905-023-66-45, e-mail: nataliabeylina@mail.ru  The article reflects current […]