1. Quality Management Department; King Khalid University Hospital, King Saud University; Riyadh Saudi Arabia
2. Research Chair for Evidence-Based Health Care and Knowledge Translation, Deanship of Scientific Research; King Saud University; Riyadh Saudi Arabia
3. Alexandria Centre for Evidence-Based Clinical Practice Guidelines; Alexandria University Medical Council, Alexandria University; Alexandria Egypt
4. Department of Paediatrics, College of Medicine; King Saud University; Riyadh Saudi Arabia
5. Prince Abdullah Bin Khalid Celiac Disease Research Chair, Deanship of Scientific Research; King Saud University; Riyadh Saudi Arabia
6. Department of Paediatrics; Prince Sultan Military Medical City; Riyadh Saudi Arabia