1. Department of Pediatrics, Evangelisches Waldkrankenhaus Spandau, Berlin, Germany.
2. Pediatric Medicine, Brandenburg Medical School (MHB) Theodor Fontane, Neuruppin, Germany.
3. Child Health Department, Sultan Qaboos University, Muscat, Oman.
4. Department of General Pediatrics, Sidra Medicine, Doha, Qatar.
5. Pediatric Department, King Saud University & KSUMC, Riyadh, Saudi Arabia.
6. Dietetics Department, Prince Sultan Military Medical City, Riyadh, Saudi Arabia.
7. Department of Pediatrics-Pediatric Gastroenterology, Amiri Hospital, Sharq, Kuwait.
8. Department of Child Health, Royal Hospital, Muscat, Oman.
9. Pediatrics Department, Faculty of Medicine, University of Alexandria, Alexandria, Egypt.
10. Pediatric Department, Salmaniya Medical Complex/Arabian Gulf University, Manama, Bahrain.
11. Pediatrics and Neonatology, Danat Al Emarat Hospital, Abu Dhabi, UAE.
12. Pediatrics Department, University Hospital Sharjah, Sharjah, UAE.
13. Pediatrics Department, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.