CD4 and hepatocellular carcinoma: The results of immune infiltration showed that naive B cells, plasma cells, T cell CD4 memory resting, T cell CD4 memory activation, T cell regulation, T cell γδ, natural killer (NK) cell activation, NK cell resting, monocytes, macrophages M2, dendritic cell resting, mast cell resting, mast cell activation, neutrophil infiltration in HCC, and normal tissues were statistically significant (Figures 7(a) and 7(b)).