CXCL12 and acute myeloid leukemia: The impact of CXCL12 expression on outcome was also observed in the non-M3-AML (OS, P = 0.002, Fig. 4B; EFS, P = 0.0007, Fig. 4E) and cytogenetically normal (CN)-AML (OS, P = 0.002, Fig. 4C; EFS, P = 0.002, Fig. 4F) subgroups.