1. Kırıkkale Yuksek Ihtisas Hospital, Department of Cardiology, Kırıkkale, Turkey
2. Kestel State Hospital, Department of Internal Medicine, Bursa, Turkey
3. Yozgat Bozok University Faculty of Medicine, Department of Internal Medicine, Yozgat, Turkey
4. Kırıkkale Yuksek Ihtisas Hospital, Department of Anesthesiology, Kırıkkale, Turkey
5. Kırıkkale University Faculty of Medicine, Department of Gastroenterology, Kırıkkale, Turkey