CD274 and neoplasm: There was a significant positive correlation between CD3-positive TILs count and the percentage of PD-L1-positive tumor cells (Spearman’s rank correlation coefficient: 0.32; p-value: 0.0076; Figure 4c), and a significant positive association between CD3-positivity and PD-L1-positivity in tumor samples (Fisher’s exact test p-value = 0.02, Figure 3c).