CD8A and neoplasm: The results showed that the percentage of CD3+P+ CTL subpopulations in group C in the tumor tissues was significantly lower than that in the paracancerous tissues (P < 0.05, Fig. 4E) but that the percentage of CD8+G+ CTL subpopulations in group C in the tumor tissues was significantly higher than that in the paracancerous tissues (P < 0.05, Fig. 4E) by a paired sample t test.