Studying Genes in Samples From Younger Patients With Relapsed Acute Lymphoblastic Leukemia
Conditions
- B-cell Childhood Acute Lymphoblastic Leukemia
- Recurrent Childhood Acute Lymphoblastic Leukemia
- Untreated Childhood Acute Lymphoblastic Leukemia
Interventions
- OTHER: laboratory biomarker analysis
Sponsor
Children's Oncology Group
Collaborators