By performing Spearman correlation analysis, we established a positive correlation existed on the tumor-infiltrating immune cells when compared to the high-risk group, including common lymphoid progenitors, resting mast cells, CD4 + T cells, macrophage M1, uncharacterized cells, macrophage M0, as well as neutrophils (Supplementary Fig. S1). The gene discussed is CD4; the disease is neoplasm.