1. Department of Radiology & Biomedical Imaging, UCSF, San Francisco, CA, USA.
2. Department of Radiology, University of Washington, Seattle, WA, USA.
3. Brain and Spinal Cord Injury Center, Zuckerberg San Francisco General Hospital and Trauma Center, San Francisco, CA, USA.
4. Department of Neurological Surgery, UCSF, San Francisco, CA, USA.
5. San Francisco Veterans Affairs Medical Center, San Francisco, CA, USA.
6. Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA.
7. Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA, USA.
8. Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA, USA.
9. Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
10. Department of Neurosurgery, Baylor College of Medicine, Houston, TX, USA.
11. Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA.
12. Department of Family Medicine & Public Health, University of California, San Diego, La Jolla, CA, USA.
13. Department of Neurological Surgery, University of Washington, Seattle, WA, USA.
14. Departments of Neurosurgery and Neurology, Medical College of Wisconsin, Milwaukee, WI, USA.
15. Department of Neurology, Baylor College of Medicine, Houston, TX, USA.
16. Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA, USA.