V.T. SAIDOVA, D.R. SABIROVA, E.M. NEMIROVSKAYA, L.M. MIROLYUBOV Children’s Republican Clinical Hospital of the Ministry of Health of the Republic of Tatarstan, Kazan Kazan State Medical Academy Kazan State Medical University Saidova Venera Talgatovna external PhD student of the Department of Hospital Pediatrics with a course of postgraduate education and polyclinic pediatrics 140 Orenburgskiy Trakt […]