1. Department of Emergency Medicine, Brown University Warren Alpert Medical School, Providence, Rhode Island, USA
2. Department of Emergency Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
3. Department of Medicine (Hospital Medicine) and Department of Medical Education, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
4. Department of Pediatrics (Emergency Medicine) and Department of Medical Education, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
5. Department of Medical Education and Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
6. Department of Emergency Medicine and Department of Medical Education, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA