1. Department of Nephrology, University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
2. Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
3. Department of Pathology, University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
4. Department of Urology, University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
5. Erasmus MC, Cardiovascular Institute, Thorax Center, Department of Cardiology , Rotterdam , The Netherlands
6. Department of Epidemiology, University Medical Center Groningen, University of Groningen , Groningen , The Netherlands