Next, we investigated the tumor-infiltrating immune cells including B cell, macrophage M1, macrophage M2, monocyte, myeloid dendritic cell, neutrophil, NK cell, T cell (CD4+), T cell (CD8+), T regulatory cell, and uncharacterized cell in the high and low risks of the prognostic model 2 (Figure 4A). Here, CD4 is linked to neoplasm.