Figure 6. Association between risk score and tumor immunity. (A) Distribution of immune scores in high- and low-risk HNSCC patients. (B) Association between the risk score and immune score in HNSCC samples. (C) Distribution of stromal scores in high- and low-risk HNSCC patients. (D) Association between the risk score and stromal score in HNSCC samples. (E) Comparison of immune cell fractions between the high-risk and low-risk HNSCC patients.