CD34 and chronic myelogenous leukemia, BCR-ABL1 positive: (ii) The CML G0 cells are in a slightly more advanced stage of development than the normal G0 cells, and as previously reported by Graham et al. [58], the CML CD34+ G0 cells are more similar to the CD34+ proliferating cells than are the normal G0 and G1/S/G2/M fractions.