In CP‐CML CD34+CD15− cells, we identified 1857 windows that could be merged into 400 hyper‐ and 742 hypomethylated differentially methylated regions (DMRs) of up to 2.3Kbp in size, respectively (Figs 2C, S3A and Table S3). Here, CD34 is linked to chronic myelogenous leukemia, BCR-ABL1 positive.