| Institution: | 1. Department of Emergency Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA;2. Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA;3. Department of Emergency Medicine and Pulmonary Critical Care Medicine, Cooper Medical School of Rowan University, Camden, NJ, USA;4. Department of Emergency Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA;5. Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA |
