To determine whether the expression of the genes in these two lists was affected in CP‐CML CD34+CD15− cells and to validate the HM450K data in an independent cohort, we performed DNA methylation and expression analyses of selected genes using independent CP‐CML and HD CD34+CD15− samples (n = 7 and n = 5, respectively). Here, CD34 is linked to chronic myelogenous leukemia, BCR-ABL1 positive.