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A, B Representative dot-plots and the corresponding graphs showing the percentages of CD3+ CD8+ and CD3+ CD8− cells producing cytokines in CT26-derived tumors taken from BALB/c mice intraperitoneally injected with α-PD-1 or IgG (both 100 µg per mouse). Each point in the graph represents the value of each mouse. *p < 0,05; **p < 0.01; ****p < 0.0001
