1. Department of Psychiatry, College of Medicine, King Saud University, Riyadh 11362, Saudi Arabia
2. Department of Psychiatry, King Saud University Medical City, King Saud University, Riyadh 11362, Saudi Arabia
3. Eradah Complex and Mental Health, Buraydah 52366, Saudi Arabia
4. Department of Psychiatry, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
5. Pediatric Department, College of Medicine, King Saud University, Riyadh 11362, Saudi Arabia
6. Prince Abdullah bin Khaled Coeliac Disease Research Chair, King Saud University, Riyadh 11362, Saudi Arabia