1. Department of Cardiology, 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, Leiden University Medical Center, Leiden, The Netherlands
6. Department of Nephrology, HAGA Hospital, The Hague, The Netherlands