Testing Longer Duration Radiation Therapy Versus the Usual Radiation Therapy in Patients With Cancer That Has Spread to the Brain
NRG Oncology
NRG Oncology
City of Hope Medical Center
M.D. Anderson Cancer Center
M.D. Anderson Cancer Center
NRG Oncology
Dana-Farber Cancer Institute
European Organisation for Research and Treatment of Cancer - EORTC
Centre hospitalier de l'Université de Montréal (CHUM)
Albert Einstein College of Medicine
University Hospital, Ghent
Eastern Cooperative Oncology Group
Yale University
Memorial Sloan Kettering Cancer Center