1. Department of Emergency Medicine Cooper University Health Care, Cooper Medical School of Rowan University Camden New Jersey USA
2. Institutional Research and Outcomes Assessment Philadelphia College of Osteopathic Medicine Philadelphia Pennsylvania USA
3. Department of Medicine Columbia University Medical Center New York New York USA
4. Department of Medicine Cooper University Health Care, Cooper Medical School of Rowan University Camden New Jersey USA
5. Department of Emergency Medicine Washington University School of Medicine St. Louis Missouri USA
6. Department of Anesthesiology, Division of Critical Care Medicine Washington University School of Medicine St. Louis Missouri USA