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Prognostic significance of day-8 blood MRD in patients who are free of MRD in bone marrow by day 29. Patients with high levels (defined as > 1%) MRD at day 8 fare worse (5-year EFS of 79% ± 4%) than those with lower levels (90% ± 1%), even if they become MRD− by day 29. This difference was especially important in NCI HR patients (see “Results”).
