E.V. KHAZOVA1, R.V. VALIAKHMETOV1, O.V. BULASHOVA1, M.I. MALKOVA1, 2  1Kazan State Medical University, Kazan 2City Clinical Hospital No. 7, Kazan  Contact details: Khazova E.V. — PhD (medicine), Associate Professor of the Department of Department of Propedeutics of Internal Diseases named after Prof. S.S. Zimnitsky Address: 49 Butlerov St., Kazan, Russian Federation, 420012, tel.: +7-905-313-97-10, e-mail: […]