APEX1 and breast cancer: The genotype and allele frequencies of ten polymorphisms in the DNA repair pathways; XRCC1 rs25487, XPD rs13181, APE1 rs1130409, XRCC2 rs3218536, XRCC3 rs861539, hOGG1 rs1052133, XPG rs17655, hMSH2 rs4987188, RAD51 rs2619679, and RAD51 rs5030789 were determined in BC patients and controls (Table 4).