1. King Abdulaziz Medical City, King Saud bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia
2. King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia
3. King Saud bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia
4. Aseer Central Hospital, Abha, Saudi Arabia