1. Department of General Surgery, Ankara Education and Research Hospital, Ankara, Turkey.
2. Department of Pathology, Ankara Education and Research Hospital, Ankara, Turkey.
3. Department of Biochemistry, Ankara Education and Research Hospital, Ankara, Turkey.
4. Yil University, Faculty of Veterinary, Van, Turkey.
5. Department of General Surgery, Kirikkale University Medical Faculty, Kirikkale, Turkey.