CD8A and hepatocellular carcinoma: Another study reported that the tumor necrosis factor‐α levels of the murine HCC model following MWA were higher in the high‐power MWA group than in the low‐power MWA group, and the high‐power MWA group showed a higher number of infiltrating CD8+ T lymphocytes in distant tumors than the low‐power MWA group [29].