TOX3 and breast cancer: Findings from previous studies suggested that several SNPs are predominantly associated with ER+ breast cancer: TNRC9-rs3803662 [11], [37], [41], 5p12-rs4415084 [9], 5p12-rs10941679 [9], FGFR2-rs2981582 [9], [43] 8q24-rs13281615 [44].