1. Department of Radiation Oncology, College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA;
2. Department of Neurological Surgery, Oregon Health & Sciences University, Portland, OR, USA;
3. Department of Epidemiology, Mailman School of Public Health, and Department of Medicine, College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA;
4. Herbert Irving Comprehensive Cancer Center, College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA;
5. Division of Biostatistics, New York State Psychiatric Institute, Columbia University Irving Medical Center, New York, NY, USA;
6. Department of Neurological Surgery, Baylor College of Medicine, Houston, TX, USA;
7. Department of Neurological Surgery, College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA;
8. Department of Neurology, College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA;
9. Department of Neurosurgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA