A.A. Balandin1, L.J. Djafarova2, I.A. Balandina3, S.V. Ivanov4

1–4 E.A. Vagner Perm State Medical University (Perm, Russia)

1 balandinnauka@mail.ru, 2 lala.djafarova2006@mail.ru, 3 balandina_ia@mail.ru, 4 Johnjonson484@gmail.com