Wilcoxon rank-sum test results revealed significant differences in infiltration levels of 15 immune cell types between tumor and normal control groups (Figure 2B), including: Macrophages M0, Macrophages M2, T cells CD8, Macrophages M1, T cells CD4 memory activated, Mast cells activated, NK cells resting, Dendritic cells resting, Plasma cells, T cells gamma delta, NK cells activated, Monocytes, Mast cells resting, Eosinophils, and Neutrophils. The gene discussed is CD4; the disease is neoplasm.