R.R. Gamirov1, L.E. Komarova2, R.Sh. Khasanov1, К.T. Shakirov1, B.K. Mazitov1 1 Tatarstan Cancer Center, Volga Region branch of RCRC named after N.N. Blokhin of the RAMS, Kazan 2 Russian Cancer Research Center named after N.N. Blokhin of the RAMS, Moscow