CD4 and neoplasm: The percentage of PD-L2+ TIL, as a continuous variable in both CD4+ and CD8+ TIL, was positively correlated with tumor size and IHC scores for %Ki67, %stromal TIL, %global TIL, %intratumoral TIL, TLS, %CD4+, and %CD8+ (Table S8A in Supplementary Material) despite a very low proportion of positivity.