1. Suppl Table 1. Database has been randomly split in two groups
and the observed prognostic thresholds were tested.

5. Suppl Figure 1A. Overall Survival based on WT1 levels at diagnosis
Suppl Figure 1A. Overall Survival based on WT1 levels at diagnosis. Cases with WT1 levels below 200 copies at diagnosis were excluded.

6. Suppl Figure 1B. Leukemia Free Survival based on WT1 levels at diagnosis. Cases with WT1 levels below 200 copies at diagnosis were excluded.

7. Suppl Figure 1C. Cummulative Incidence of relapse based on WT1 levels at diagnosis.Cases with WT1 levels below 200 copies at diagnosis were excluded.

8. Suppl Figure 2A. . Overall Survival based on WT1 expression after induction chemotherapy. Cases with WT1 levels below 200 copies at diagnosis were excluded.

9. Suppl Figure 2B. Leukemia Free Survival based on WT1 expression after induction chemotherapy. Cases with WT1 levels below 200 copies at diagnosis were excluded.

10. Suppl Figure 2C. Cummulative Incidence of relapse based on WT1 expression after induction chemotherapy. Cases with WT1 levels below 200 copies at diagnosis were excluded.

11. Suppl Figure 3A. Overall Survival based on WT1 expression after Intensification chemotherapy. Cases with WT1 levels below 200 copies at diagnosis were excluded.

12. Suppl Figure 3B. Leukemia Free Survival based on WT1 expression after Intensification chemotherapy. Cases with WT1 levels below 200 copies at diagnosis were excluded.

13. Suppl Figure 3C. Cummulative Incidence of relapse based on WT1 expression after Intensification chemotherapy. Cases with WT1 levels below 200 copies at diagnosis were excluded.