1. Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona;
2. Departments of Neurosurgery and
3. Neuroscience, Brown University and Rhode Island Hospital, Providence, Rhode Island;
4. Department of Neurosurgery, University of Florida, Gainesville, Florida;
5. Departments of Neurological Surgery,
6. Department of Neurosurgery, University of Pennsylvania, Philadelphia, Pennsylvania;
7. Boulder Neurosurgical & Spine Associates, Boulder, Colorado;
8. Functional Neuromodulation Ltd., Minneapolis, Minnesota; and
9. Medicine, and
10. Psychiatry, Johns Hopkins University, Baltimore, Maryland;
11. Division of Neurosurgery, University of Toronto, Ontario, Canada