N.V. RYLOVA1, A.V. ZHOLINSKY2, A.A. BIKTIMIROVA1  1 Kazan State Medical University, Kazan 2 Federal Scientific and Clinical Center for Sports Medicine and Rehabilitation of the FMBA of Russia, Moscow Contact details: Rylova N.V. — MD, Professor of the Department of Hospital Pediartics Address: 49 Butlerov St., Russian Federation, Kazan, 420012, tel.: +7 (917) 397-33-93, e-mail: […]