Fig. 2

A Kaplan -Meier curves for PFS and OS were used to determine 1.1%, 0.65% 0.8%, and 0,7 as the cut-off of CD137⁺, CD137⁺ PD1⁺, CD137⁺CD8⁺, and CD8⁺CD137⁺ PD1⁺ T cells, respectively. Long-rack test was used to analyze the differences between the two groups. m = months, p values < 0.05 were considered significant