Figure 6. Diversity of immune microenvironment characteristics in high- and low-risk groups. (A) The activity differences of each immune function between high and low-risk groups. (B) The differences of each HLA-related gene between both risk groups. (C) The expression status of immune checkpoints between both risk groups. (D) The expression status of m6A-related genes between both risk groups. *p < 0.05, **p < 0.01, and ***p < 0.001.