1. Gastroenterology Clinic, Ataturk Training and Research Hospital, 35965 Izmir, Turkey
2. Department of Gastroenterology, Faculty of Medicine, Cumhuriyet University, 58140 Sivas, Turkey
3. Cumhuriyet Universitesi Hastanesi, Gastroenteroloji B.D., 58140 Sivas, Turkey
4. Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Cumhuriyet University, 58140 Sivas, Turkey
5. Department of Pathology, Faculty of Veterinary Medicine, Cumhuriyet University, 58140 Sivas, Turkey
6. Gastroenterology Clinic, Anadolu Hospital, 58070 Sivas, Turkey
7. Department of Dermatology, Faculty of Medicine, Cumhuriyet University, 58140 Sivas, Turkey