1. Research Chair for Evidence-Based Health Care and Knowledge Translation, King Saud University, Riyadh 11362, Saudi Arabia
2. Department of Family and Community Medicine, College of Medicine, King Saud University Medical City, Riyadh 12372, Saudi Arabia
3. Department of Clinical Sciences, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh 84428, Saudi Arabia
4. High Institute of Public Health, Alexandria University, Alexandria 21544, Egypt
5. College of Medicine, Cardiac Sciences Department, King Saud University, Riyadh 11362, Saudi Arabia
6. College of Medicine, King Saud University, Riyadh 11362, Saudi Arabia
7. Pediatric Department, King Saud University, Riyadh 11362, Saudi Arabia
8. Prince Abdullah Bin Khaled Coeliac Disease Research Chair, Pediatric Department, King Saud University, Riyadh 11362, Saudi Arabia
9. Corporate Quality Management Department, King Saud University Medical City, Riyadh 11362, Saudi Arabia
10. Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
11. Department of Public Health Intelligence, Public Health Authority, Riyadh 11614, Saudi Arabia
12. Wegner Health Sciences Library, University of South Dakota, Sioux Falls, SD 57069, USA