GSTM1 and myelodysplastic syndrome: Abnormal complete blood count (Hb 10.2 g/dL, RBC 4.65×1012/L, HCT 32.7%, WBC 0.79×109/L, ANC 0.00×109/L, platelet count 28×109/L), fever, tachycardia (119 beats/min). The diagnosis was myelodysplastic syndrome