CD274 and neoplasm: The expression of miR-200b and miR-200c significantly negatively correlated with the percentage of tumor cells with expression of PD-L1 protein (R=-0326, p=0.027, Pearson’s R=−0.221, p=0.08 and R=−0.417, p=0.0032, Pearson’s R=0.29, p=0.037, respectively, Figures 3C, D).