In cohort A, 86.7% (30, missing data = 9) of patients at diagnosis showed anemia and/or thrombocytopenia, with a mean Hb value of 9.1 (8.0–10.5) g/dL and platelet count of 80.9 (21–112) ×109/L, cohort B showed 66.7% (30 cases, 6 missing data) with a mean Hb concentration of 9.7 (6.9–10.9) g/dL and platelets count of 89.3 (44–117) ×109/L. The gene discussed is GSTM1; the disease is anemia (phenotype).