Figure 4. Associations between tumor immune cell microenvironments and two HCC subtypes. (A) Heatmap of the tumor-infiltrating cells and clinical features in two HCC subtypes. (B) Expression abundance of 23 infiltrating immune cell types in the two HCC subtypes. (C) Immune checkpoints heatmap between the two subtypes. (D) Correlations between the TME score and the two HCC subtypes. HCC, hepatocellular carcinoma; TME, tumor microenvironment.