1. Division of Hospital Medicine, University of Colorado, Aurora
2. Division of Cardiology, University of Colorado School of Medicine, Aurora
3. Division of Cardiology, VA Eastern Colorado Health Care System, Aurora
4. Department of Radiology, University of Ottawa, Ottawa, Ontario, Canada
5. Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
6. Adult and Child Consortium for Health Outcomes Research and Delivery Science, Aurora, Colorado
7. Rocky Mountain Prevention Research Center, Aurora, Colorado
8. Division of Pulmonary and Critical Care Medicine and Division of General and Hospital Medicine, The University of Texas School of Medicine at San Antonio, San Antonio
9. Section of Hospital Medicine, South Texas Veterans Health Care System, San Antonio
10. Institute of Cardiology/University Foundation of Cardiology, Porto Alegre, Brazil
11. Department of Emergency Medicine, Brigham and Women's Hospital, Boston, Massachusetts
12. Harvard Medical School, Boston, Massachusetts
13. Health Sciences Library, University of Colorado, Aurora
14. Division of Hospital Medicine, University of Texas Southwestern Medical Center, Dallas