1. Department of Cardiovascular Surgery, Turkey Yuksek Ihtisas Training and Research Hospital, Ankara, Turkey;
2. Department of Cardiovascular Surgery, Karabük Devlet Hastanesi, Karabük, Turkey;
3. Department of Anesthesiology and Reanimation, Turkey Yuksek Ihtisas Training and Research Hospital, Ankara, Turkey;
4. Department of Biology, Faculty of Science, Istanbul University, Istanbul, Turkey