WT1 and myelodysplastic syndrome: A statistically significant difference was observed in the expression levels of WT1 mRNA in PB and BM between MDS and AML-MDS patients(PB: 3.11±0.98 vs 4.57±0.53, P<0.05; BM: 3.73±0.93 vs 4.92±0.81, P<0.05).