1. Research Center, King Fahad Medical City, Riyadh, Saudi Arabia
2. Emergency Medicine Department, King Saud University Medical City, Riyadh, Saudi Arabia
3. Clinical Research Holy Management Department, Executive Administration of Research, King Abdullah Medical City in Capital, Makkah, Saudi Arabia
4. Department of Statistics, University of Malakand, Malakand, Pakistan
5. Internal Medicine Consultant, King Fahad Medical City, Riyadh, Saudi Arabia
6. Neonatal Intensive Care Unit, King Fahad Medical City, Children specialized hospital, Riyadh, Saudi Arabia