Additional file 9: of Normal breast tissue DNA methylation differences at regulatory elements are associated with the cancer risk factor age JohnsonKevin HousemanE. KingJessica ChristensenBrock 2017 A, B DNA methylation differences between DCIS and normal adjacent tissue in limma coefficients (i.e., effect size) for age-related (n =787) and randomly selected loci (n = 787). C, D DNA methylation differences between invasive breast cancer and normal adjacent tissue in limma coefficients (i.e., effect size) for age-related (n = 787) and randomly selected loci (n = 787). (PPTX 970 kb)