| Affiliation: | 1. Department of Emergency Medicine, Ground floor, Ravdin Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA;2. Department of Emergency Medicine, University of Maryland School of Medicine, 110 South Paca Street, 6th Floor, Baltimore, MD 21201, USA;1. Department of Emergency Medicine, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA;2. Department of Emergency Medicine, University of Maryland School of Medicine, 6th Floor, Suite 200, 110 South Paca Street, Baltimore, MD 21201, USA;1. Department of Emergency Medicine, University of Pittsburgh, Suite 10028, Forbes Tower, Pittsburgh, PA 15260, USA;2. Department of Emergency Medicine, Michigan State University College of Human Medicine, 15 Michigan Street Northeast, Suite 420, Grand Rapids, MI 49503, USA;1. Department of Emergency Medicine, University of Pittsburgh, Suite 10028, Forbes Tower, Pittsburgh, PA 15260, USA;2. Department of Emergency Medicine, Michigan State University College of Human Medicine, 15 Michigan Street Northeast, Suite 420, Grand Rapids, MI 49503, USA;3. Department of Emergency Medicine, Albany Medical Center, 47 New Scotland Avenue, MC 139, Albany, NY 12208, USA |
