Affiliations

• ¹ Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.
• ² Department of Emergency Medicine, Yale University School of Medicine, New Haven, Connecticut, USA.
• ³ Department of Emergency Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.
• ⁴ Department of Emergency Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
• ⁵ Department of Emergency Medicine, Stanford University, Palo Alto, California, USA.
• ⁶ University of California Los Angeles Department of Emergency Medicine, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California, USA.
• ⁷ Department of Emergency Medicine, Alpert Medial School of Brown University, Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA.
• ⁸ Department of Emergency Medicine, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.