1. Anesthesia and ICU Department, Royal Medical Service, Kingdom of Bahrain, Riyadh, Saudi Arabia
2. Department of Critical Care Medicine, King Saud University, Riyadh, Saudi Arabia
3. Department of Internal Medicine, King Faisal Specialist Hospital, Riyadh, Saudi Arabia
4. Department of Emergency Medicine, King Abdulaziz Medical City, Riyadh, Saudi Arabia
5. Department of Pulmonology, King Fahad Medical City, Riyadh, Saudi Arabia
6. Department of Internal Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
7. Department of Internal Medicine, King Khalid University, Abha, Saudi Arabia
8. Department of Emergency Medicine, Qassim University, Buraydah, Saudi Arabia
9. Department of Infectious Diseases, King Saud University, Riyadh, Saudi Arabia
10. Department of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
11. Department of Critical Care Medicine, King Saud Medical City, Riyadh, Saudi Arabia
12. Department of Respiratory Therapy, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
13. Department of Surgery, King Faisal University, Al Hasa, Saudi Arabia