1. Department of Neurosurgery, University of Manitoba, Winnipeg, Manitoba, Canada.
2. Department of Medical Informatics and Clinical Epidemiology, Pacific Northwest Evidence-based Practice Center, Oregon Health & Science University, Portland, Oregon, USA.
3. Department of Emergency Medicine, Stanford University School of Medicine, Stanford University, Palo Alto, California, USA.
4. Stanford Neuroscience Health Center, Stanford University School of Medicine, Stanford University, Palo Alto, California, USA.
5. University of Maryland Neurosurgery Associates, R Adams Cowley Shock Trauma Center, Baltimore, Maryland, USA.
6. Inova Neuroscience and Spine Institute, Fairfax, Virginia, USA.
7. Joint Trauma System, Department of Defense, Center of Excellence for Trauma, Baltimore, Maryland, USA.
8. Independent Duty Medical Technician (IDMT), Hurlburt Field, Florida, USA.
9. Barrow Neurological Institute at Phoenix Children's Hospital, University of Arizona College of Medicine, Phoenix, Arizona, USA.
10. Department of Neurosurgery, MedStar Georgetown University Hospital, Washington, DC, USA.
11. Anaethesia and Critical Care, Uniformed Services University, Bethesda, Maryland, USA.
12. Department of Surgery, Memorial University of Newfoundland, St. John's, Newfoundland, Canada.
13. Center for Neuroscience and Regenerative Medicine, Uniformed Services University, Bethesda, Maryland, USA.
14. Department of Neurosurgery, Uniformed Services University, Bethesda, Maryland, USA.
15. Department of Neurosurgery, University of Cape Town, Cape Town, Western Cape, South Africa.
16. Department of Neurosurgery, Duke University, Raleigh, North Carolina, USA.
17. Department of Neurosurgery, Stanford University School of Medicine, Stanford University, Palo Alto, California, USA.
18. Department of Neurosurgery, Case Western Reserve University, Cleveland, Ohio, USA.
19. McGovern Medical School, University of Texas, Houston, Texas, USA.
20. Adult Outpatient Behavioral Health, Bethesda, Maryland, USA.
21. Department of Neurosurgery Walter Reed National Military Medical Center, Bethesda, Maryland, USA.
22. Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
23. Department of Surgery, University of Toronto, Toronto, Ontario, Canada.
24. Department of Neurosurgery, The Alfred Hospital, Melbourne, Victoria, Australia.
25. Hadassah University Medical Center, Jerusalem, Israel.
26. INUB-Meditech Research Group, Neuroscience Institute, Universidad El Bosque, Bogota, Colombia.
27. University of Maryland School of Medicine, Baltimore, Maryland, USA.
28. Department of Neurosurgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.
29. Royal Canadian Medical Service, Canadian Armed Forces, Canadian Forces Base Borden, Ontario, Canada.
30. Department of Neurological Surgery, UT Southwestern Medical Center, Dallas, Texas, USA.
31. Department of Emergency Medicine, Emory University, Atlanta, Georgia, USA.
32. Department of Physical Medicine and Rehabilitation, Walter Reed National Military Medical Center, Bethesda, Maryland, USA.