1. Department of Anesthesiology and Reanimation, Hacettepe University School of Medicine, Ankara, Turkey.
2. Department of General Surgery, Hacettepe University School of Medicine, Ankara, Turkey.
3. Department of General Surgery, Institute of Liver Transplantation, Inonu University Faculty of Medicine, Malatya, Turkey.
4. Department of General Surgery, Istinye University Faculty of Medicine, Istanbul, Turkey.