RT or No RT Following Chemotherapy in Treating Patients With Stage III/IV Hodgkin's Disease
European Organisation for Research and Treatment of Cancer - EORTC
European Organisation for Research and Treatment of Cancer - EORTC
European Organisation for Research and Treatment of Cancer - EORTC
Eastern Cooperative Oncology Group
Eastern Cooperative Oncology Group
Children's Oncology Group
Canadian Cancer Trials Group
SWOG Cancer Research Network
Children's Oncology Group