1. Department of Pediatric, College of Medicine, King Saud University, Riyadh, Saudi Arabia
2. Neonatal Intensive Care Unit, King Saud University Medical City, Riyadh, Saudi Arabia
3. Department of Pediatric, Ohud Hospital, MOH, Madinah, Saudi Arabia
4. Neonatal Intensive Care Unit, Ohud Hospital, MOH, Madinah, Saudi Arabia
5. Department of Pediatrics, Hamad General Hospital, Doha, Qatar
6. Department of Pediatrics, Sidra Medicine, Doha, Qatar
7. Department of Pediatrics, Maternity and Children Hospital, Najran, Saudi Arabia
8. Department of Pediatrics, EL-Ekhaa Hospital, Syrian Expatriate Medical Association, Idlib, Syria
9. Department of Pediatrics, Aladan Hospital, Hadiya, Kuwait
10. Syrian Expatriate Medical Association (SEMA), Gaziantep, Turkey
11. College of medicine, Alfaisal University, Riyadh, Saudi Arabia