1. Critical Care Department King Saud Medical City Riyadh Saudi Arabia
2. Biostatistics Unit, Clinical Research Institute American University of Beirut Medical Center Beirut Lebanon
3. Department of Medicine The Johns Hopkins University Hospital Baltimore Maryland USA
4. Emergency Department, Harvard Medical School Massachusetts General Hospital Boston Massachusetts USA
5. Critical Care Department, Alberta Health Care Services Edmonton Alberta Canada
6. Research & Innovation Centre King Saud Medical City Riyadh Saudi Arabia
7. Department of Medicine University of South Carolina School of Medicine Columbia South Carolina USA
8. Department of Emergency Medicine St. Francis Hospital Columbus Georgia USA