1. Department of Nephrology, Radboud Institute for Health Sciences, Radboud university medical center , Nijmegen , the Netherlands
2. Department of Nephrology, ‘s-Hertogenbosch, Jeroen Bosch Hospital , the Netherlands
3. Department of Geriatric Medicine, Radboud university medical center , Nijmegen , the Netherlands
4. Department of Geriatric Medicine, ‘s-Hertogenbosch, Jeroen Bosch Hospital , the Netherlands
5. Department of Clinical Pharmacology, ‘s-Hertogenbosch, Jeroen Bosch Hospital , the Netherlands
6. Department of Elderly Care Medicine, Amsterdam University Medical Center , the Netherlands