1. Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA
2. Center for Skull Base and Pituitary Surgery, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
3. Department of Radiology, Henry Ford Health System, Detroit, Michigan, USA
4. Department of Radiology, Mayo Clinic and Foundation, Rochester, Minnesota, USA
5. Nuclear Medicine and Clinical Molecular Imaging, University Hospital Tubingen, Tubingen, Germany
6. Department of Neurosurgery, University Medical Center, Hamburg-Eppendorf, Germany
7. Department of Neurosurgery, Ludwig-Maximilians-University Munich, Munich, Germany
8. Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA
9. Center for Neuro-Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
10. Department of Laboratory Pathology, National Cancer Institute, National Institute of Health, Bethesda, Maryland, USA
11. MacFeeters-Hamilton Center for Neuro-Oncology, Princess Margaret Cancer Center, Toronto, Ontario, Canada
12. Division of Neurosurgery, University Health Network, University of Toronto, Ontario, Canada