1. Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
2. University of Miami, Miller School of Medicine, Miami, Florida.
3. Department of Neurological Surgery, University of California San Francisco, San Francisco, California.
4. Department of Public Health, Center for Medical Decision Making, Erasmus Medical Center, Rotterdam, The Netherlands.
5. Department of Psychiatry, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
6. Department of Rehabilitation Medicine, Icahn School of Medicine at Mount Sinai, New York, New York.
7. Seton Brain and Spine Institute, Austin, Texas.
8. Division of Anesthesia, University of Cambridge, Addenbrooke's Hospital, Cambridge, United Kingdom.
9. Department of Radiology, University of California San Francisco, San Francisco, California.
10. Department of Psychology, University of Texas, Austin, Texas.