1. Department of Nephrology Hitit University, Faculty of Medicine Corum Turkey
2. Department of Peritonael Dialysis Baxter, Baxter International Inc Ankara Turkey
3. Department of Nephrology Ankara University Faculty of Medicine Ankara Turkey
4. Department of Nephrology 19 Mayis University Faculty of Medicine Samsun Turkey
5. Department of Nephrology Bursa Yüksek İhtisas Training and Research Hospital Bursa Turkey
6. Department of Nephrology Bursa City Hospital Bursa Turkey
7. Department of Nephrology Hacettepe University Faculty of Medicine Ankara Turkey
8. Department of Nephrology Uludağ University Faculty of Medicine Bursa Turkey
9. Department of Medical Biochemistry Eskisehir Osmangazi University Faculty of Medicine Eskisehir Turkey