1. Department of Radiation Oncology, Brigham and Women’s Hospital, Harvard Medical School , Boston, Massachusetts , USA
2. Department of Radiation Oncology, Duke University Medical Center , Durham, North Carolina , USA
3. Division of Cancer Sciences, University of Manchester , Manchester , UK
4. Division of Neuro-Oncology, University of California San Francisco , San Francisco, California , USA
5. Department of Radiation Oncology, New York University , New York, New York , USA
6. National Brain Tumor Society , Newton, Massachusetts , USA
7. Department of Neurosurgery and Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School , Boston, Massachusetts , USA
8. Department of Radiation Oncology, Mayo Clinic , Rochester, Minnesota , USA
9. Department of Radiation Oncology, St. Jude Children’s Research Hospital , Memphis, Tennessee , USA
10. Department of Therapeutic Radiology, Yale University , New Haven, Connecticut , USA
11. Miami Cancer Institute, Baptist Hospital , Miami, Florida , USA
12. Center for Neuro-Oncology, Dana-Farber Cancer Institute, Harvard Medical School , Boston, Massachusetts , USA