1. Department of Clinical Nutrition, Faculty of Medicine Hacettepe University Ankara Turkey
2. Department of Surgical Nursing, Gulhane Faculty of Nursing University of Health Sciences Turkey Ankara Turkey
3. Department of Surgical Nursing, Faculty of Nursing Hacettepe University Ankara Turkey
4. Department of Gastroenterology, Faculty of Medicine Hacettepe University Ankara Turkey
5. Department of General Surgery, Faculty of Medicine Hacettepe University Ankara Turkey