SLC10A1 and hepatocellular carcinoma: The expression of sodium taurocholate cotransporting polypeptide (NTCP), the entry receptor of HBV and HDV, in HH was comparable to normal human liver tissue (Supplemental Figure 1, B–D) and was far more abundant than that of NTCP-overexpressing hepatoma cells, which are commonly utilized in HBV and HDV infection studies.