1. Department of Nephrology, Leiden University Medical Center, Leiden, The Netherlands;
2. Department of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, The Netherlands;
3. Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands;
4. Department of Radiology, HAGA Hospital, The Hague, The Netherlands;
5. Department of Nephrology, Reinier de Graaf Group, Delft, The Netherlands;
6. Institute for Evidence-based Medicine in Old Age (IEMO), Leiden, The Netherlands;
7. Department of Nephrology, HAGA Hospital, The Hague, The Netherlands