1. Division of Neurosurgery, University Health Network, University of Toronto, Ontario, Canada
2. MacFeeters-Hamilton Center for Neuro-Oncology, Princess Margaret Cancer Center, Toronto, Ontario, Canada
3. Centre for Skull Base and Pituitary Surgery, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
4. Institute of Translational and Stratified Medicine, Peninsula Schools of Medicine and Dentistry, Plymouth University, Plymouth, United Kingdom
5. Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
6. Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
7. Institute of Neuropathology, Otto-von-Guericke University, Magdeburg, Germany
8. Department of Neurosurgery, Henry Ford Health System, Detroit, Michigan, USA
9. Department of Pathology, University of California San Francisco, San Francisco, California, USA
10. Department of Neuropathology, University Hospital Heidelberg, Heidelberg, Germany
11. Department of Neurological Surgery, University Hospital–Case Medical Center, Cleveland, Ohio, USA
12. Center for Neuro-Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
13. Department of Laboratory Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA