PALB2 and breast cancer: A report of 524 PALB2 PV carrier families of European ancestry estimated the associated relative risks with BC as 7.2 (95%CI = 5.8–8.8; p = 6.5 × 10−76) and OC as 2.9 (95%CI = 1.4–6; p = 4.1 × 10−3) [118].