GSTM1 and myelodysplastic syndrome: Cytopenia definitions are harmonized for CCUS, MDS, and MDS/MPN; they include Hb <13 g/dL in males and <12 g/dL in females for anaemia, absolute neutrophil count <1.8 ×109/L for leukopenia, and platelets <150 × 109/L for thrombocytopenia [9].