G.Sh. Mansurova, S.V. Maltsev, I.V. Ryabchikov 1Kazan (Volga region) Federal University, 74 Karl Marx Str., 420012 Kazan, Russian Federation 2Kazan State Medical Academy — Branch Campus of the FSBEI FPE RMACPE MOH Russia, 36 Butlerov Str., 420012 Kazan, Russian Federation 3Children’s Republican Clinical Hospital of the Ministry of Health of the Republic of Tatarstan, 20 […]