RALGPS2 and breast neoplasm: We then examined the correlation between the expression of LINC02568 and these 18 genes, which led to the identification of three genes, ESR1, RALGPS2, and GREB1, that are highly correlated with LINC02568 in breast tumor tissues (R ≥ 0.3) (Figure 3F and Table S4, Supporting Information).