1. Department of Emergency Medicine Columbia University Medical Center New York NY
2. Department of Emergency Medicine Yale‐New Haven Medical Center New Haven CT
3. Department of Emergency Medicine Henry Ford Medical Center Detroit MI
4. Department of Emergency Medicine University of Arizona College of Medicine–Phoenix Maricopa Integrated Health System Phoenix AZ
5. Department of Emergency Medicine University of Kansas Medical Center Kansas City KS
6. Department of Neurology Stroke Service Columbia University Medical Center New York NY
7. Department of Emergency Medicine Boston Medical Center Boston MA
8. Department of Emergency Medicine Alpert Medical School of Brown University Providence RI