1. Division of Gastroenterology , , Kuwait City , Kuwait
2. Department of Internal Medicine, Mubarak Alkaber Hospital , , Kuwait City , Kuwait
3. Department of Pharmacy Practice, Faculty of Pharmacy, Kuwait University , Kuwait City , Kuwait
4. Division of Gastroenterology, Department of Medicine, Schulich School of Medicine, Western University , London, ON , Canada
5. Lawson Health Research Institute, Western University , London, ON , Canada
6. Department of Epidemiology and Biostatistics, Western University , London, ON , Canada
7. Division of Gastroenterology and Hepatology, Department of Medicine, McGill University Health Center , Montreal, QC , Canada