In TCGA dataset, most pro-tumor immune cells (M2 macrophages, Tregs and neutrophils) were more abundant in high-risk group, while several types of anti-tumor immune cells (plasma cells, CD4+ naive cells, activated NK cells) had a higher infiltration in low-risk group (Figure 6B), which was consistent with the results in CGGA dataset (Figure S9B). The gene discussed is CD4; the disease is neoplasm.