1. Department of Anesthesiology, Medical College of Wisconsin, Milwaukee
2. Department of Anesthesiology, Zablocki Veterans Affairs Medical Center, Milwaukee, Wisconsin
3. Department of Neurological Surgery, University of Washington, Seattle
4. Department of Biostatistics, University of Washington, Seattle
5. Department of Neurosurgery, Baylor College of Medicine, Houston, Texas
6. Department of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas
7. Department of Neurological Surgery, University of California, San Francisco
8. Brain and Spinal Injury Center, San Francisco, California
9. Department of Neurosurgery, Medical College of Wisconsin, Milwaukee
10. Department of Neurology, Medical College of Wisconsin, Milwaukee
11. Department of Neurology, University of Maryland, Baltimore
12. Department of Neurology, University of Pennsylvania, Philadelphia
13. Department of Pediatric Neurosurgery, Mass General Hospital for Children, Boston, Massachusetts
14. Department of Emergency Medicine, Virginia Commonwealth University, Richmond
15. Department of Neurosurgery, University of Utah, Salt Lake City
16. Departments of Neurology and Translational Neuroscience, Barrow Neurological Institute, Phoenix, Arizona
17. Department of Laboratory Medicine and Pathology, University of Washington, Seattle
18. Department of Neurosurgery, UT Southwestern, Dallas, Texas
19. Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond
20. Department of Neurosurgery, University of Cincinnati, Cincinnati, Ohio
21. Department of Neurological Surgery, Goodman Campbell Brain and Spine, Carmel, Indiana
22. Department of Psychology, UT Austin, Austin, Texas
23. Department of Neurosurgery, University of California, San Francisco
24. Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, Massachusetts