S.A. IVYANSKY, L.A. BALYKOVA, A.N. URZYAEVA, L.S. ZAGRYADSKAYA, Yu.O. SOLDATOV, A.V. SAMARIN Mordovian State University named after N.P. Ogarev, Saransk Children Republican Clinical Hospital of the Ministry of Health of the Republic of Mordovia, Saransk Republican medical exercises dispensary of the Ministry of Health of the Republic of Mordovia, Saransk Ivyansky Stanislav Aleksandrovich Senior Lecturer […]