N.R. KHASANOV1, O.S. BELKOREY2 1Kazan State Medical University, 49 Butlerov St., Kazan, Russian Federation, 420012 2City polyclinic №218, 8 Shokalskiy St., Moscow, Russian Federation, 129642 Khasanov N.R. — D. Med. Sc., Professor of the Department of Propedeutics of Internal Diseases, tel. +7-987-290-60-21, e-mail: ybzp@mail.ru Belkorey O.S. — cardiologist, tel. +7-916-044-36-68, e-mail: cardiosvao@gmail.com The study was […]