Branches of oncology - Radiology, Radiation Oncology Cooperative Research Groups

American College of Radiology Imaging Network (ACRIN) Philadelphia, PA, USA

EORTC Radiation Oncology Group (ROG) Brussels, Belgium

Grupo de Investigación Clínica en Oncología Radioterápica (GICOR) Madrid, Spain

National Cancer Research Network (NCRN) - Leeds, UK
Radiotherapy Group

Radiation Therapy Oncology Group (RTOG) Philadelphia, PA, USA

Trans-Tasman Radiation Oncology Group (TROG) NSW, Australia