CCL5, GBP5, GZMA, GZMH, IRF1, LAG3, NKG7, PRF1, and PSMB10 correlated to CD8+ T lymphocyte infiltration proportion in cutaneous melanoma, thyroid carcinoma, head and neck cell carcinoma, hepatocellular carcinoma, and lung adenocarcinoma squamous (Figure 6D). The gene discussed is PRF1; the disease is thyroid gland carcinoma.