Figure 8. Correlation of the expression of the four genes with immune cell infiltration levels in patients with LUAD. (A) Scatter plot showing that 16 kinds of TIICs were correlated with the CCR2 expression (p < 0.05). (B) Scatter plot showing that 13 kinds of TIICs were correlated with CCR4 expression (p < 0.05). (C) Scatter plot showing 14 kinds of TIICs correlated with P2RY12 expression (p < 0.05). (D) Scatter plot showing 16 kinds of TIICs correlated with P2RY13 expression (p < 0.05).