1. The Department of Emergency Medicine; Vanderbilt University; Nashville Veterans Affairs Medical Center; Nashville TN
2. The Department of Emergency Medicine; Wayne State University; Detroit MI
3. The Division of Cardiology; Cleveland Clinic; Cleveland OH
4. The Division of Cardiology; Emory University; Atlanta GA
5. The Division of Cardiology; University of Alberta; Edmonton Alberta Canada
6. The Division of Cardiology; Duke University; Durham NC
7. The Department of Emergency Medicine; University of Cincinnati; Cincinnati OH
8. The Division of Cardiology; Ronald Reagan-UCLA Medical Center; Los Angeles CA
9. The Department of Emergency Medicine; Harvard Medical School; Boston MA
10. The Department of Emergency Medicine; Wake Forest University; Winston-Salem NC
11. The Department of Emergency Medicine; Thomas Jefferson University; Philadelphia PA
12. The Division of Cardiology; Wayne State University; Detroit MI
13. The Department of Emergency Medicine; Northwestern University; Chicago IL
14. The Department of Emergency Medicine; Baylor University; Houston TX
15. The Division of Cardiology; San Francisco Veterans Affairs Medical Center; University of California at San Francisco; San Francisco CA
16. The Division of Cardiology; Vanderbilt University; Nashville Veterans Affairs Medical Center; Nashville TN