1. Medical Education Atlanta VA Medical Center, Medicine Service Atlanta Georgia USA
2. Division of Hospital Medicine Emory School of Medicine Atlanta Georgia USA
3. Department of Medicine South Texas Veterans Health Care System, Medicine Service San Antonio Texas USA
4. Division of General & Hospital Medicine University of Texas Health San Antonio San Antonio Texas USA
5. Department of Medicine Case Western Reserve University School of Medicine Cleveland Ohio USA
6. Department of Medicine South Texas Veterans Health Care System, Research Service San Antonio Texas USA
7. Division of Pulmonary Diseases & Critical Care Medicine University of Texas Health San Antonio San Antonio Texas USA
8. Department of Veterans Affairs Healthcare Analysis and Information Group Milwaukee Wisconsin USA
9. Department of Pulmonary, Critical Care and Sleep Medicine George Washington University Medical Faculty Associates Washington District of Columbia USA
10. Pulmonary and Critical Care Medicine Washington Veterans Affairs Medical Center Washington District of Columbia USA
11. Department of Emergency Medicine Vanderbilt University Medical Center Nashville Tennessee USA
12. Department of Emergency Medicine VA Tennessee Valley Healthcare System—Nashville Nashville Tennessee USA
13. Pulmonary Section Minneapolis Veterans Affairs Health Care System Minneapolis Minnesota USA
14. Department of Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep Medicine University of Minnesota Minneapolis Minnesota USA
15. Medicine Service VA NY Harbor Healthcare System New York USA
16. Division of Pulmonary, Critical Care, and Sleep Medicine New York University School of Medicine New York New York USA
17. Critical Care Service VA Pittsburgh Health Care Systems Pittsburgh Pennsylvania USA
18. Departments of Critical Care Medicine and Emergency Medicine University of Pittsburgh Pittsburgh Pennsylvania USA
19. Emergency Medicine VA Greater Los Angeles Healthcare System Los Angeles California USA
20. Department of Emergency Medicine David Geffen School of Medicine at UCLA, Los Angeles California USA
21. Department of Emergency Medicine University of Wisconsin Madison Wisconsin USA
22. Emergency Department William S. Middleton Memorial Veterans Hospital Madison Wisconsin USA
23. Medicine Service White River Junction VA Medical Center, White River Junction Vermont USA
24. Department of Medicine Dartmouth Geisel School of Medicine Hanover New Hampshire USA