Cytopenia levels for aiding establishment of the diagnosis of myelodysplastic syndromes.

To the editor: The recent article by Arber et al[1][1] detailing the 2016 revision of the World Health Organization (WHO) classification of myeloid malignancies and AML was timely and germane. Regarding myelodysplastic syndromes (MDS), the authors indicate diagnostic criteria that include levels of