1 Department of Anaesthesiology and Samsun University Faculty of Medicine, Samsun Training and Research Hospital, Samsun, Turkey.
2 Department of Anaesthesiology and Reanimation; Atatürk University Faculty of Medicine, Clinical Research, Development and Design Application and Research Center, Erzurum, Turkey.
3 Department of Medical Education, Maltepe University Faculty of Medicine, İstanbul, Turkey.
4 Anaesthesiology and Intensive Care, University Hospital of Padua, Padua, Italy.
5 Department of Anaesthesiology and Reanimation, Koç University Faculty of Medicine, İstanbul, Turkey.