Fig. 2.
EFS for patients with less than 45 chromosomes and ≥45 chromosomes according to NCI risk classification.11 (A) NCI standard risk (1 to 9 years of age with WBC counts <50,000/μL). (B) NCI poor risk (≥10 years of age or WBC counts ≥50,000/μL). (Inset) Number of patients remaining in follow-up.