1. Department of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht, The Netherlands;
2. Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands;
3. Department of Nephrology and Immunology, University of Alberta, Edmonton, Alberta, Canada;
4. Department of Nephrology, Vrije Universiteit Medical Center, Amsterdam, The Netherlands; and
5. Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands