1. Department of Anesthesiology and Reanimation, Mamak State Hospital, 06270 Ankara, Turkey
2. Department of Anesthesiology and Reanimation, Faculty of Medicine, Gazi University, 06560 Ankara, Turkey
3. Department of Medical Biochemistry, Faculty of Medicine, Gazi University, 06560 Ankara, Turkey
4. Department of Medical Pathology, Faculty of Medicine, Gazi University, 06560 Ankara, Turkey