1. Department of Emergency Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
2. Faculty of Medicine, Clinical Research Institute, American University of Beirut Medical Center, Beirut, Lebanon.
3. Division of Orthopedic Surgery, Department of Surgery, Faculty of Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
4. Emergency Medical Services and Prehospital Care Program, American University of Beirut Medical Center, Beirut, Lebanon.
5. Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.