Department of Emergency Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, United States. Department of Emergency Medicine, University of Maryland School of Medicine, Baltimore, MD, United States; Program in Trauma, The R Adams Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore, MD, United States. Department of Emergency Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, United States. Electronic address: Pourmand@gwu.edu.