1. Department of Cardiovascular Surgery; Diyarbakir Gazi Yasargil Education and Research Hospital; Diyarbakir Turkey
2. Department of Neurosurgery; Diyarbakir Gazi Yasargil Education and Research Hospital; Diyarbakir Turkey
3. Department of Anesthesiology; Diyarbakir Obstetrics and Gynecology Hospital; Diyarbakir Turkey