Figure 6. Association between the STK4 expression and immune infiltration in the tumor microenvironment. (A) The forest plot shows the correlation between STK4 expression and multiple immune cells. The absolute value of Spearman r was indicated by the size of the dots. (B) The Wilcoxon rank sum test was used to analyze the difference in pDC and NK cells infiltration levels between STK4 high and low expression groups. (C) The Spearman correlation method was used to analyze the correlation between STK4 expression and pDC and NK cells infiltration.