CD8A and non-small cell lung carcinoma: As shown in Figure 3, a higher density of CD8+ TILs was correlated with an improved DFS in patients with NSCLC (HR=0.92, 95%CI: 0.50-1.69, P>0.05, Figure 3A), with significant heterogeneity (I2 = 89.3%, P<0.001).