FLT3 and acute myeloid leukemia: No difference was observed between FLT3-TKD group and FLT3wt group in three-year OS, DFS, and EFS in NK-AML (65.5% ± 20.9% vs. 54.4% ± 10.5%, P = 0.538; 53.3% ± 24.8% vs. 51.7% ± 8.4%, P = 0.43; 48.6% ± 22.7% vs. 47.9% ± 7.6%, P = 0.557).