For example, three variants identified in early GWAS for overall breast cancer, FGFR2 (rs35054928 and rs2981578)[22, 23] and 8q24.21 (rs13281615)[22], were associated with luminal-like and HER2-positive/non-luminal subtypes, but not with TN disease. Here, FGFR2 is linked to breast cancer.