Rituximab and Combination Chemotherapy in Treating Patients With Stage II, Stage III, or Stage IV Diffuse Large B-Cell Non-Hodgkin's Lymphoma
Eastern Cooperative Oncology Group
Eastern Cooperative Oncology Group
Polish Lymphoma Research Group
SWOG Cancer Research Network
AIDS Malignancy Consortium
SWOG Cancer Research Network
Children's Oncology Group
Children's Oncology Group
SWOG Cancer Research Network
SWOG Cancer Research Network
European Organisation for Research and Treatment of Cancer - EORTC