1. The Department of Emergency Medicine Hennepin County Medical Center and University of Minnesota; Minneapolis MN
2. The Division of Cardiology; Atlanta GA
3. The Department of Epidemiology; Emory University Rollins School of Public Health; Atlanta GA
4. The Department of Emergency Medicine; Atlanta GA
5. Emory University School of Medicine; Atlanta GA
6. The Department of Emergency Medicine; University of Michigan; Ann Arbor MI
7. The Department of Emergency Medicine; The University of Arizona, and The Arizona Emergency Medicine Research Center; Tucson AZ
8. Department of Hematology and Oncology; Atlanta GA