CD4 and neoplasm: Spearman correlation analyses revealed statistically significant positive correlations between RANKL expression within the tumor microenvironment and total infiltrating CD4+ T cells (EPIC, ρ = 0.234, P = 1.88e−03; TIMER, ρ = 0.157, P = 3.89e−02), naive CD4+ T cells (CIBERSORT, ρ = 0.187, P = 1.36e−02), and memory CD4+ T cells (XCELL, ρ = 0.236, P = 1.75e−03).