1. Department of Internal Medicine, Van Education and Research Hospital, Van, Turkey
2. Nutrition and Diets Unit, Health High School, Van Yüzüncü Yıl University, Van, Turkey
3. Department of Surgery of Gastroenterology, Van Education and Research Hospital, Van, Turkey
4. Department of Surgery, Van Yüzüncü Yıl University, Van, Turkey
5. Department of Gastroenterology, Van Education and Research Hospital, Van, Turkey