1. MacFeeters Hamilton Neuro-Oncology Program, Princess Margaret Cancer Centre, University Health Network and University of Toronto, Toronto, Ontario, Canada
2. Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
3. Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
4. Division of Neurosurgery, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
5. Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, USA
6. Department of Neurosurgery, University of Liverpool, Liverpool, UK
7. Department of Neurosurgery, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
8. Department of Biostatistics, Henry Ford Health System, Detroit, Michigan, USA
9. Department of Neurology, Henry Ford Health System, Detroit, Michigan, USA
10. Dana Farber/Harvard Cancer Center, Massachusetts General Hospital, Boston, Massachusetts, USA
11. Department of Neurosurgery, Cambridge University Hospitals, Cambridge, UK
12. Department of Radiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
13. Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
14. Department of Radiology, The Mayo Clinic, Rochester, Minnesota, USA
15. National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA