Survival estimates in newly diagnosed patients with “AML, NOS.” Kaplan-Meier estimates of OS (A) of 5848 and RFS (B) of 4458 patients with “AML, NOS” based on WHO 2008 classification by individual FAB category. (C-D) Survival in patients with FAB M0 and M1-M6. Kaplan-Meier estimates of OS (C) and RFS (D) of patients with newly diagnosed “AML, NOS” based on WHO 2008 classification and subclassified as either FAB M0 or M1-M6; patients with FAB M7 were excluded from this analysis.