Immune infiltration analysis between the two subtypes of HBV-HCC. (A) Stacked histogram of the infiltration ratio of 22 immune cells in each sample of the two subtypes C1 and C2. (B) Heat map of correlation between 22 immune cells, red indicates positive correlation, blue indicates negative correlation, and the values in the heat map are the magnitude of correlation between the corresponding immune cells. (C) Box plot of the difference in infiltration between C1 and C2 for the 22 immune cells. (D) Heat map of the correlation between characteristic genes and 22 immune cell infiltrates in HBV-HCC samples, red represents positive correlation and blue represents negative correlation. (E) Box-line plot of the difference in expression of 12 immune functions between C1 and C2. (F) Heat map of the correlation between feature genes and 12 immune cell infiltrates in HBV-HCC samples, red represents positive correlation and blue represents negative correlation. *p < 0.05, **p < 0.01, ***p < 0.001.