We also identified a CD34+‐CD7+ phenotype for high WT1 cluster of AML cells, which has already been found to be associated with poor risk in AML (Del Poeta et al, 1995) and possibly involved in clonal evolution of CML (Kosugi et al, 2005). Here, CD34 is linked to chronic myelogenous leukemia, BCR-ABL1 positive.