1. From the Department of Nephrology, Suleyman Demirel University School of Medicine, Isparta, Turkey (B.A.)
2. Department of Medicine (M. Kuwabara, R.J.J.)
3. Department of Cardiology, Toranomon Hospital, Tokyo, Japan (M. Kuwabara)
4. Dialysis Unit, School of Medicine, IIS-Fundacion Jimenez Diaz, Universidad Autónoma de Madrid, Spain (A.O.)
5. Department of Internal Medicine, Koc University School of Medicine, Istanbul, Turkey (A.Y.)
6. Department of Nephrology, Dialysis and Renal Transplant Center, “Dr C.I. Parhon” University Hospital, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, Romania (D.S., A.C.)
7. Division of Renal Diseases and Hypertension (B.R.-I.), University of Colorado Anschutz Medical Campus, Aurora, CO
8. Renal Service, Hospital Universitario, Universidad del Zulia and Instituto Venezolano de Investigaciones Científicas (IVIC)-Zulia, Maracaibo (B.R.-I.)
9. Division of Nephrology, Department of Medicine, Koc University School of Medicine, Istanbul, Turkey (M. Kanbay).