1. Departments of Neurological Surgery (C.-C.L., M.L.V., Z.X., C.-P.Y., D.S., B.D., J.S.), Charlottesville, Virginia 22908;
2. Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital (C.-C.L.), Taiwan 11217, Republic of China
3. School of Medicine, National Yang-Ming University (C.-C.L.), Taipei, Taiwan 11217, Republic of China
4. Medicine (M.L.V.), University of Virginia, Charlottesville, Virginia 22908;
5. Radiation Oncology (J.S.), Charlottesville, Virginia 22908;