fig1
Figure 1. Stimulation index of CD8+ T cells was determined by the ratio of IFNγ+CD8+ vs. IFNγ-CD8+ T cells after stimulation with autologous tumor antigens. Shown are mean ± SD. IFNγ: interferon gamma; CRC: colorectal cancer; HCC: hepatocellular carcinoma; RFA: radiofrequency ablation