1. Department of Medicine, Royal Hospital, Muscat, Oman
2. Department of Renal Medicine, Royal Hospital, Muscat, Oman
3. Oman Medical Specialty Board, Muscat, Oman
4. Department of Gastroenterology, Royal Hospital, Muscat, Oman
5. Department of Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia
6. Department of Medicine, Ministry of Health and Prevention, Dubai, UAE