As illustrated in Supplementary Figure 1, the results suggested that PGD expression was related with immune markers of neutrophils (Figure S1A), macrophage (Figure S1C), monocyte (Figure S1D), Treg cell (Figure S1E), B cells (Figure S1G), CD8 + T cells (Figure S1H), and dendritic cell (Figure S1I) in HCC. The gene discussed is CD8A; the disease is hepatocellular carcinoma.