NRAS and acute myeloid leukemia: The NGS panel included a total of 20 frequently mutated genes in AML: ASXL1, CEBPA, DNMT3A, EZH2, FLT3, IDH1, IDH2, KIT, NPM1, PHF6, RUNX1, TET2, TP53, BCOR, GATA2, KMT2A, KRAS, NRAS, PDGFRA, and WT1. The sequencing depth was 2,000 ×.