1. Department of Medical History and Ethics, Istanbul University-Cerrahpasa Cerrahpasa Faculty of Medicine, Istanbul, Turkey
2. Department of Biostatistics and Medical Informatics, Istanbul University-Cerrahpasa Cerrahpasa Faculty of Medicine, Istanbul, Turkey
3. Department of Anesthesiology and Reanimation, Bezmialem Vakif University School of Medicine, Istanbul, Turkey
4. Department of Anesthesiology and Reanimation, Inonu University School of Medicine, Malatya, Turkey
5. Clinic of Surgical Oncology, Samsun Training and Research Hospital, Samsun, Turkey
6. Department of Anesthesiology and Reanimation, Bezmialem Vakif University School of Medicine, Istanbul, Turkey.