1. Johns Hopkins Berman Institute of Bioethics and Bloomberg School of Public Health, Baltimore, MD 21205, USA
2. VA Connecticut Healthcare System, West Haven, CT 06516, USA
3. Yale University School of Medicine, New Haven, CT 06520, USA
4. Minneapolis VA Health Care System, Minneapolis, MN 55417, USA
5. University of Minnesota Medical School, Minneapolis, MN 55455, USA
6. Johns Hopkins Medical Institutions, Clarksville, MD 21029, USA0
7. DoD-VA Extremity Trauma and Amputation Center of Excellence, Bethesda, MD 20814, USA
8. Department of Surgery, Uniformed Services University of the Health Sciences and Walter Reed National Military Medical Center, Bethesda, MD 20814, USA
9. Department of Anesthesiology, Harvard Medical School, Brigham and Women’s Hospital, Chestnut Hill, MA 02467, USA
10. Naval Medical Center San Diego, Department of Physical Therapy, San Diego, CA 92134, USA
11. University of Utah, College of Health, Salt Lake City, UT 84108, USA
12. Duke Clinical Research Institute and Department of Orthopaedic Surgery, Duke University, Durham, NC 27715, USA
13. Spine IQ, Oskaloosa, IA 52577, USA
14. School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
15. Duke University School of Medicine, Durham, NC 27710, USA
16. Durham VA Health Care System, Durham, NC 27705, USA
17. Department of Anesthesiology, University of California San Diego School of Medicine, LaJolla, CA 92093, USA
18. Palmer Center for Chiropractic Research, Davenport, IA 52803, USA
19. James A. Haley Veterans Hospital, Tampa, FL 33612, USA
20. University of South Florida College of Public Health, Tampa, FL 33612, USA
21. Tennessee Valley Healthcare System, Nashville, TN 37212, USA
22. Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN 37212, USA
23. Department of Psychiatry & Behavioral Sciences, University of Texas Health Science Center, San Antonio, TX 78229, USA
24. VA Palo Alto Health Care System, Palo Alto, CA 94304, USA
25. Department of Physical Medicine & Rehabilitation, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
26. Department of Rehabilitation, Walter Reed National Military Medical Center, Bethesda, MD 20814, USA
27. Brooke Army Medical Center, JBSA Fort Sam Houston, TX 78234, USA
28. VA Puget Sound Health Care System, Seattle, WA 98108, USA
29. Henry Jackson Foundation, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
30. Durham VA Medical Center, Durham, NC 27701, USA
31. Department of Medicine, Duke University, Durham, NC 27708, USA
32. University of California San Francisco, School of Medicine, San Francisco, CA 94143, USA
33. San Francisco VA Medical Center, San Francisco, CA 94121, USA
34. VA Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA
35. University of California Los Angeles Department of Medicine and Department of Health Policy and Management, Los Angeles, CA 90095, USA
36. University of Washington, School of Public Health, Seattle, WA 98195, USA