1. Department of Emergency Medicine, Armed Force Hospital Southern Region, Asir, Saudi Arabia;
2. Emergency Medicine Department, King Saud University, Riyadh, Saudi Arabia
3. Pediatric Critical Care Unit, Abha Maternity and Children Hospital, Abha, Saudi Arabia
4. Pediatric Critical Care Unit, Khamis Mushayt Maternity and Children Hospital, Khamis Mushait, Saudi Arabia