1. Dept. of Cardiology, Faculty of Medicine, Duzce University, Duzce, Turkey.
2. Dept. of Internal Medicine and Endocrinology and Metabolism, Faculty of Medicine, Duzce University, Duzce, Turkey.
3. Dept. of Biochemistry and Clinical Biochemistry, Faculty of Medicine, Duzce University, Duzce, Turkey.
4. Dept. of Internal Medicine, Faculty of Medicine, Duzce University, Duzce, Turkey.
5. Family Medicine Centre, Duzce, Turkey.