1. Department of Emergency Medicine, Massachusetts General Hospital, Boston, MA, USA
2. Harvard Medical School, Boston, MA, USA
3. Harvard-Affiliated Emergency Medicine Residency, Massachusetts General Hospital and Brigham and Women’s Hospital, Boston, MA, USA
4. Lawrence Center for Quality and Safety, Massachusetts General Hospital, Boston, MA, USA
5. Division of Adult Inpatient Medicine, Department of Medicine, Newton-Wellesley Hospital, Newton, MA, USA