1. Department of Internal Medicine and Faculty of Medicine, Istanbul Medeniyet University, Istanbul, Turkey.
2. Department of Family Physician, Faculty of Medicine, Istanbul Medeniyet University, Istanbul, Turkey.
3. Department of Gastroenterology, Duzce State Hospital, Duzce, Turkey.
4. Department of Nephrology and Faculty of Medicine, Istanbul Medeniyet University, Istanbul, Turkey.
5. Department of Gastroenterology, Faculty of Medicine, Istanbul Medeniyet University, Istanbul, Turkey.