1. Department of Emergency Medicine; UC Davis School of Medicine; Sacramento CA
2. Center for Policy and Research in Emergency Medicine; Department of Emergency Medicine, Oregon Heath & Science University; Portland OR
3. Department of Biostatistics; Fielding School of Public Health; University of California; Los Angeles CA
4. Department of Emergency Medicine; University of Rochester; Rochester NY
5. Department of Emergency Medicine; William Beaumont Hospital-Troy; Troy MI
6. Department of Emergency Medicine; Brigham & Women's Hospital; Boston MA
7. Department of Emergency Medicine; The Ohio State University Wexner Medical Center; Columbus OH
8. Department of Emergency Medicine; William Beaumont Hospital-Royal Oak; Royal Oak MI
9. Department of Emergency Medicine; University of Texas-Southwestern; Dallas TX
10. Department of Emergency Medicine; Thomas Jefferson University Hospital; Philadelphia PA
11. Department of Emergency Medicine; Wake Forest School of Medicine; Winston Salem NC
12. Department of Emergency Medicine; University of Wisconsin-Madison; Madison WI
13. Department of Emergency Medicine; Summa Health System; Akron OH
14. Department of Emergency Medicine; Vanderbilt University; Nashville TN