1. Division of Prehospital Care, Department of Emergency Services, Sunnybrook and Women’s College Health Sciences Center, Toronto, Canada
2. Department of Health Administration, University of Toronto, Toronto, Canada
3. Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
4. Department of Medicine, St. Michael’s Hospital and University of Toronto, Toronto, Canada
5. Ontario Air Ambulance Base Hospital Program, Toronto, Canada
6. Division of Emergency Medicine, Department of Medicine, University of Toronto and Toronto Emergency Medical Services, Toronto, Canada