Affiliation: | 1. Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, United States of America;2. University of Michigan School of Medicine, Ann Arbor, MI, United States of America;3. Department of Emergency Medicine, Crozer-Keystone Health System, Upland, PA, United States of America;4. Department of Emergency Medicine, Massachusetts General Hospital/Harvard Medical School, Boston, MA, United States of America |