1. Department of Emergency Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora
2. Veterans Affairs Eastern Colorado Geriatric Research Education and Clinical Center, Denver
3. Harvard Injury Control Research Center, Harvard School of Public Health, Boston, Massachusetts
4. Department of Biostatistics and Informatics, School of Public Health, University of Colorado Anschutz Medical Campus, Aurora
5. Division of Cardiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora
6. Adult & Child Consortium for Outcomes Research & Delivery Science, School of Medicine, University of Colorado Anschutz Medical Campus
7. Department of Emergency Medicine, Alpert Medical School, Brown University, Providence, Rhode Island
8. Department of Emergency Medicine, University of California, Davis, Sacramento
9. Division of Geriatric Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora
10. Department of Health Sciences, Bouvé College of Health Sciences, Northeastern University, Boston, Massachusetts