TY JOUR TI THE ROLE OF IMMUNE CHECKPOINT INHIBITORS IN ANTITUMORAL IMMUNITY KW antitumor therapy KW immune checkpoints KW immune checkpoint inhibitors KW CTLA-4 KW PD-1 KW PD-L1 JO Crimea Journal of Experimental and Clinical Medicine AU Dmitrievskaya, M.I. AU Ibragimova, D.N. AU Useinova, A.N. AU Rebik, A.A. PY 2022 IS 11 PB V.I. Vernadsky Crimean Federal University