1. Department of Hematology-Oncology, Erciyes University, School of Medicine, Kayseri, Turkey.
2. Department of Radiation Oncology, Erciyes University, School of Medicine, Kayseri, Turkey.
3. Department of Pathology, Erciyes University, School of Medicine, Kayseri, Turkey.
4. Department of Surgery, Erciyes University, School of Medicine, Kayseri, Turkey.
5. Department of Gastroenterology, Erciyes University, School of Medicine, Kayseri, Turkey.