1. Ataturk University, Faculty of Medicine, Department of Internal Medicine, Division of Gastroenterology
2. Ataturk University, Faculty of Medicine, Department of Internal Medicine
3. Ataturk University, Faculty of Veterinary Medicine, Department of Pharmacology and Toxicology
4. Ataturk University, Faculty of Medicine, Department of Biochemistry
5. Samsun Mehmet Aydin Hospital, Pharmacology