CD34 and chronic myelogenous leukemia, BCR-ABL1 positive: In this study, several IM-resistant CML CD34+ cells (n = 6, CFC inhibition < 60% in the presence of 5 μM IM is considered as resistant samples following the criteria of Jiang’s study [49]) were collected to study the role of ZFX in the growth and IM response of these cells.