Comparison of Combination Chemotherapy Regimens in Treating Patients With Ewing's Sarcoma or Neuroectodermal Tumor
Children's Oncology Group
Children's Oncology Group
Mayo Clinic
OHSU Knight Cancer Institute
GOG Foundation
National Cancer Institute (NCI)
City of Hope Medical Center
European Organisation for Research and Treatment of Cancer - EORTC
Children's Oncology Group