1. Department of Neurological Surgery, Center for Image-guided Neurosurgery, University of Pittsburgh, Pennsylvania;
2. Departments of Radiation Oncology and Neurological Surgery, Taipei Veterans Hospital, Taipei, Taiwan;
3. Functional and Radiosurgery Unit, Ruber International Hospital, Madrid, Spain;
4. Department of Stereotactic and Radiation Neurosurgery, Na Homolce Hospital, Prague, Czech Republic;
5. Department of Neurological Surgery, University of Virginia, Charlottesville, Virginia;
6. Department of Neurological Surgery, University of Pennsylvania, Philadelphia, Pennsylvania;
7. Department of Neurological Surgery, Cleveland Clinic, Cleveland, Ohio;
8. Université de Sherbrooke, Centre de Recherche Clinique Étienne-LeBel, Sherbrooke, Quebec, Canada; and
9. New York University Langone Medical Center, New York, New York