The combination of intratumoral iNKT cells and IFN-γ had a better power to predict HCC patients’ outcomes compared with intratumoral iNKT cells or IFN-γ alone on the basis of not only hazard ratio (Table 4, Table S2 and Table S3) but also the area under the ROC curve (Table 5). Here, IFNG is linked to hepatocellular carcinoma.