CD8A and neoplasm: The area under the curve (AUC) values of CD8+ T cells levels in the intratumoral area, PD1+CD8+ T cell levels in the whole tumor and stromal areas, and PD1+CD8+/CD8+ ratio in the whole tumor and stromal areas, were 0.822 (P = 0.007), 0.775 (P = 0.014), 0.779 (P = 0.013), 0.793 (P = 0.014), and 0.839 (P = 0.005), respectively.