V.A. Yolkin1, A.I. Toma2, V.V. Komarov3, V.P. Meschanov4, P.L. Altukhov5

1 Saratov branch of V.A. Kotel’nikov IRE of RAS (Saratov, Russia)

2 FGBU «United hospital with polyclinic», Administration of the President of Russian Federation (Moscow, Russia)

3 Yuri Gagarin State Technical University of Saratov (Saratov, Russia)

4 JSC NPP «NIKA-SVCH» (Saratov, Russia)

5 Saratov State Law Academy (Saratov, Russia)