CXCR4 and leukemia: Pearson’s correlation analysis did not reveal correlations between the CXCR4 RFI on the surface of AML cells and the peripheral white blood cell (WBC) count, platelet (PLT) count, hemoglobin (HGB) concentration, peripheral blood leukemic cell (PBLC) count or the proportion of leukemia cells in the bone marrow (all P > 0.05, details are shown in Table 2).