V.G. PUZYREV1, I.D. SITDIKOVA1, 3, F.V. KHUZIKHANOV2, S.A. MIKHAILOVA2, M.K. IVANOVA4, A.M. AHMETOV3, A.V. SITDIKOVA2, M.V. MALEEV5  1St. Petersburg State Pediatric Medical University, St. Petersburg 2Kazan State Medical University, Kazan 3Naberezhnye Chelny State Pedagogical University, Naberezhnye Chelny 4Izhevsk State Medical Academy, Izhevsk 5Republican Clinical Hospital, Kazan   Contact details: Sitdikova I.D. — MD, Professor of the Department of […]