T.V. IVANOVA¹, M.L. KINZERSKAYA², S.V. KOROLEV¹ ¹Chelyabinsk Regional Cardiological Dispensary, 34 Mozhayskay St., Chelyabinsk, Russian Federation 454000 ²Scientific Center of Medical Technologies, 34a Vorovskogo St., Chelyabinsk, Russian Federation 454048 Ivanova T.V. — doctor of functional and ultrasonic diagnostics, Head of Diagnostic Department, tel. +7-922-639-15-99, e-mail [email protected]¹ Kinzerskaya M.L. — D. Med. Sc., doctor of functional diagnostics of Diagnostics Department, Leading Researcher, tel. +7-951-472-12-40, […]