CD4 and neoplasm: In Figure 3C, the TIMER demonstrated that CXCL9 expression level was negatively related to tumor purity (P <0.001, r=-0.212) but positively associated with B cells (P<0.001, r=0.527), CD8+ T cells (P<0.001, r=0.435), CD4+ T cells (P<0.001, r=0.42), macrophages (P<0.001, r=0.211), neutrophil (P<0.001, r=0.433), and DC (P<0.001, r=0.57).