1. Department of Medical Pharmacology, Medical Faculty, Van Yuzuncu Yıl University, Van, Turkey
2. Department of Medical Biology, Medical Faculty, Van Yuzuncu Yıl University, Van, Turkey
3. Department of General Surgery, Medical Faculty, Van Yuzuncu Yıl University, Van, Turkey
4. Department of Gastroenterology, Ortadoğu Hospital, Adana, Turkey
5. Medical Faculty, Van Yuzuncu Yıl University, Van, Turkey