Affiliation: | 1. Department of Emergency Medicine, Allegheny Health Network, Pittsburgh, Pennsylvania, USA;2. Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA;3. Department of Emergency Medicine, Buffalo General Medical Center, University at Buffalo, Buffalo, New York, USA;4. Department of Emergency Medicine, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA;5. Department of Emergency Medicine, Temple University Hospital, Philadelphia, Pennsylvania, USA;6. Department of Emergency Medicine, Truman Medical Center Hospital, Kansas City, Missouri, USA |