1. Department of Emergency Medicine, inistry of National Guard Hospital Health Affairs (MNGHA), King Abdulaziz Medical City (KAMC), Riyadh, Saudi Arabia
2. College of Medicine , King Saud bin Abdulaziz University – Health Sciences (KSAU-HS), Riyadh, Saudi Arabia
3. Department of Emergency Medicine, Ministry of National Guard Hospital Health Affairs (MNGHA), King Abdulaziz Medical City (KAMC), Riyadh, Saudi Arabia