1. Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA
2. Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Ontario, Canada
3. Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA
4. Department of Neurosurgery, University of California Los Angeles, Los Angeles, California, USA
5. Radiotherapy Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
6. Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, USA
7. Department of Neurosurgery and Gamma Knife Center, Lausanne University Hospital, Lausanne, Switzerland
8. Department of Radiation Oncology, University of California San Francisco, San Francisco, California, USA
9. Medical Physics Ltd, Reading, Cromwell Hospital, London, UK
10. Functional and Stereotaxic Neurosurgery Department, Clinical Neuroscience Federation, Timone Hospital, Aix-Marseille University, Marseille, France
11. Department of Neurological Surgery, University of Virginia, Charlottesville, Virginia, USA
12. Division of Radiation Oncology, Aizawa Comprehensive Cancer Center, Aizawa Hospital, Matsumoto, Japan
13. Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA