1. Department of Thoracic Surgery, Ataturk University, School of Medicine, Erzurum, Turkey
2. Anesthesiology, Clinical Research Office, Ataturk University, School of Medicine, Erzurum, Turkey
3. Department of Anesthesiology and Reanimation, Ataturk University, School of Medicine, Erzurum, Turkey
4. Department of Biostatistics, Ataturk University, School of Medicine, Erzurum, Turkey
5. Department of Radiology, Ataturk University, School of Medicine, Erzurum, Turkey