 - To validate the accuracy of the pre-specified induction response classifier as a binary predictor of induction response using a pre-specified cutpoint to assign patients to NR or CR groups, after controlling for the simultaneous effects of clinical variables at base-line pre-induction therapy e.g., age, WBC, blasts and clinical variables, including tests commonly available after start of induction therapy e.g., age, WBC, cytogenetics. 