Ankara Education and Research Hospital Departments of Internal Medicine, Ankara
2.Ankara Hospital, Departments of Anaesthesiology and Gastroenterology, Ankara
3.Department of Toxicology, Gazi University, School of Medicine, Ankara
4.Ankara Numune Education and Research Hospital Department of Internal Medicine, Ankara
5.Ankara Education and Research Hospital Departments of Internal Medicine and Pathology, Ankara