As shown in Figures 6A–D, our results showed that the CXCL13, FCRLA, MS4A1, and PLA2G2D were positively correlated with the level of CTL infiltration in the melanoma patients treated with anti-PD-L1 or anti-CTLA4 (Figures 6A–D). The gene discussed is PLA2G2D; the disease is melanoma.