1 Department of Emergency Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA.
2 Department of Emergency Medicine, Yale University School of Medicine, New Haven, Connecticut, USA.
3 Department of Emergency Medicine, University of Florida College of Medicine, Gainesville, Florida, USA.
4 Department of Emergency Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA.
5 Department of Emergency Medicine, Carolinas Medical Center, Charlotte, North Carolina, USA.
6 Department of Emergency Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
7 Department of Emergency, Dartmouth-Hitchcock Medical Center-Geisel School of Medicine, Hanover, New Hampshire, USA.
8 Departments of Emergency Medicine and Internal Medicine, Division of Pulmonary and Critical Care, Loma Linda University Medical Center, Loma Linda, California, USA.
9 Department of Emergency Medicine, Olive View-UCLA Medical Center and David Geffen School of Medicine at UCLA, Los Angeles, California, USA.
10 US Acute Care Solutions, Springfield, Ohio, USA.
11 Department of Radiology, Harvard Medical School, Boston, Massachusetts, USA.
12 Department of Radiology, Hofstra Northwell School of Medicine, Northwell Health System, Hempstead, New York, USA.