1. Departments of Emergency Medicine and Cellular and Integrative Physiology; Indiana University School of Medicine; Indianapolis IN USA
2. Department of Emergency Medicine; School of Medicine; University of Colorado; Aurora CO USA
3. Department of Emergency Medicine; Feinberg School of Medicine; Northwestern University; Chicago IL USA
4. Department of Emergency Medicine; Massachusetts General Hospital; Boston MA USA
5. Department of Emergency Medicine; University of Mississippi Medical Center; Jackson MS USA
6. Department of Internal Medicine; University of Utah; Salt Lake City UT USA
7. Department of Emergency Medicine; University of California; Davis, Sacramento CA USA
8. Department of Internal Medicine; Alpert Medical School of Brown University; Providence RI USA
9. Department of Emergency Medicine; Carolinas; Charlotte NC USA