I.M. FAZULZYANOVA¹,3, N.D. SHAYKHRAZIYEVA²,3 ¹Children’s Republican Clinical Hospital of the Ministry of Health of the Republic of Tatarstan, 140 Orenburgskiy trakt, Kazan, Russian Federation, 420063 ²Municipal Clinical Hospital № 7, 54 Chuikov St., Kazan, Russian Federation, 420103 3Kazan State Medical Academy, 36 Butlerov St., Kazan, Russian Federation, 420012  Fazulzyanova I.M. — Cand. Med. Sc., Associate […]