1. Division of Neurosurgery, University Health Network and Princess Margaret Cancer Center, Toronto, Ontario, Canada
2. Department of Neurosurgery, Royal Melbourne Hospital, Parkville, Victoria, Australia
3. Department of Surgery, University of Melbourne, Parkville, Victoria, Australia
4. Division of Neurosurgery, University of Alberta, Alberta, Ontario, Canada
5. Division of Neurosurgery, St Michael’s Hospital, Toronto, Ontario, Canada
6. Department of Neurosurgery, The Walton Center NHS Foundation Trust, Lower Lane, Liverpool, Merseyside, UK
7. Department of Neurosurgery, Heidelberg University Hospital, Heidelberg, Germany
8. Department of Neurosurgery, Addenbrooke’s Hospital, University of Cambridge, Cambridge, United Kingdom
9. Hermelin Brain Tumor Center, Henry Ford Health System, Detroit, Michigan, USA