Flow diagrams showing patient selection and results of PB NGS testing and biopsy diagnosis. (A) Patient selection, results of PB NGS testing, diagnosis after hematologic workup, and rate of progression to frank myeloid neoplasm on follow-up. (B) Results of PB NGS testing and short-interval bone marrow biopsy diagnosis (n = 72). The inset table shows PPVs and NPVs and likelihood ratios.