1. Division of Nephrology, Department of Internal Medicine, Goztepe Training and Research Hospital, Istanbul Medeniyet University, Istanbul, Turkey
2. Division of Nephrology, Department of Internal Medicine, Konya Numune Hospital, Konya, Turkey
3. Division of Endocrinology, Department of Internal Medicine, Goztepe Training and Research Hospital, Istanbul Medeniyet University, Istanbul, Turkey
4. Depart-ment of Internal Medicine, Goztepe Training and Research Hospital, Istanbul Medeniyet University, Istanbul, Turkey
5. Department of Pulmonary Medicine, Istanbul Medeniyet University, School of Medicine, Istanbul, Turkey
6. Department of Clinical Biochemistry, Istanbul Medeniyet University, School of Medicine, Istanbul, Turkey
7. Department of Otorhinolaryngology, Istanbul Medeniyet University School of Medicine, Istanbul, Turkey
8. Division o Nephrology, Department o Medicine, Koc University School o Medicine, Istanbul, Turkey