We investigated the correlation between risk score and tumor-infiltrating immune cells (Figure 7A), and the results showed a closer relationship between the immune cell and the high risk group on different platforms [e.g., common myeloid progenitor, myeloid dendritic cell, macrophage M2 in XCELL platform, T cells CD8+, CD4+ in TIMER platform, Endothelial cells in EPIC platform, and macrophage M1, M2 cells (Supplementary Table S3) in CIBERSORT-ABS platform]. The gene discussed is CD8A; the disease is neoplasm.