1. Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
2. Brain and Spinal Injury Center, Zuckerberg San Francisco General Hospital, San Francisco, CA, USA
3. Departments of Neurology and Neurosurgery, Baylor College of Medicine, Houston, TX, USA
4. Department of Neurology, University of Utah, Salt Lake City, UT, USA
5. Department of Neurological Surgery, Mayo Clinic, Rochester, MN, USA
6. Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
7. Department of Public Health, Erasmus Medical Center, Rotterdam, The Netherlands
8. Department of Neurology, University of California San Francisco, San Francisco, CA, USA
9. Department of Neurology, Veterans Affairs Medical Center, San Francisco, CA, USA
10. Departments of Neurological Surgery and Biostatistics, University of Washington, Seattle, WA, USA
11. Department of Rehabilitation Medicine, University of Washington, Seattle, WA, USA
12. Department of Radiology, University of California San Francisco, San Francisco, CA, USA
13. Departments of Psychiatry and Family Medicine, University of California San Diego, San Diego, CA, USA
14. Department of Neurological Surgery, Virginia Commonwealth University, Richmond, VA, USA