1. Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands
2. Department of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht, The Netherlands
3. Department of Internal Medicine, St Antonius Hospital, Nieuwegein, The Netherlands
4. Dutch Renal Registry (RENINE), Nefrovisie Foundation, Utrecht, The Netherlands
5. Department of Nephrology, Amsterdam University Medical Center–Vrije Universiteit, Amsterdam, The Netherlands
6. Department of Internal Medicine, Maastricht University Medical Center, Maastricht, The Netherlands
7. Department of Internal Medicine, Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
8. Department of Internal Medicine, Haga Hospital, The Hague, The Netherlands