Abbreviations
AE-AML, AML1-ETO-positive acute myeloid leukemia; EML, extramedullary leukemia; CNSL, central central nervous system leukemia; SDAC, standard dose Ara-C; MDAC, median dose Ara-C; CR, complete response; OS, overall survival; DFS, disease free survival; WBC, white blood cell count; HR, hazard ratio; CI, confidence interval; ACAs, additional chromosomal abnormalities; CIR, cumulative incidence of relapse; WT, wild type; APP, amyloid precursor protein.