1. Dept. of Cardiology, Marmara University School of Medicine, Istanbul, Turkey.
2. Dept. of Cardiology, Maltepe State Hospital, Istanbul, Turkey.
3. Dept. of Cardiology, Harran University, Sanliurfa, Turkey.
4. Marmara University School of Medicine, Istanbul, Turkey.
5. Dept. of Biochemistry, Harran University, Sanliurfa, Turkey.