1. Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia;
2. Department of Neurosurgery, University of Sherbrooke, Quebec, Canada;
3. Department of Neurosurgery, University of Kentucky, Lexington, Kentucky;
4. Department of Radiation Oncology, University of California, San Francisco, California; and
5. Department of Neurosurgery, Yale University, New Haven, Connecticut;
6. Department of Neurological Surgery, University of Pennsylvania, Philadelphia, Pennsylvania;
7. Department of Neurosurgery, University of Pittsburgh, Pennsylvania;
8. Cleveland Clinic, Brain Tumor Institute, Cleveland, Ohio;
9. Department of Neurological Surgery, New York University, New York, New York