1. Department of Emergency Medicine, American University of Beirut Medical Center, P.O. Box-11-0236, Riad El Solh, Beirut 1107 2020, Lebanon
2. Emergency Medical Services and Prehospital Care Program, American University of Beirut Medical Center, P.O. Box-11-0236, Riad El Solh, Beirut 1107 2020, Lebanon
3. Department of Internal Medicine, American University of Beirut Medical Center, P.O. Box-11-0236, Riad El Solh, Beirut 1107 2020, Lebanon