| Affiliation: | 1. Department of Emergency Medicine, Maricopa Integrated Health System, Phoenix, Arizona;2. Department of Emergency Medicine, University of Arizona College of Medicine Phoenix, Phoenix, Arizona;3. Department of Emergency Medicine, The University of Michigan, Ann Arbor, Michigan;4. Department of Emergency Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania;5. Division of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California;6. Department of Grants and Research, Maricopa Integrated Health System, Phoenix, Arizona;7. Department of Medicine Administration, University of Arizona College of Medicine Phoenix, Phoenix, Arizona;8. Department of Emergency Medicine, Denver Health Medical Center, Denver, Colorado |
