1. Section of Geriatric Medicine; Department of Internal Medicine; Academic Medical Center; University of Amsterdam; Amsterdam the Netherlands
2. Department of Health Sciences; EMGO Institute for Health and Care Research; Faculty of Earth and Life Sciences; VU University Amsterdam; Amsterdam the Netherlands
3. Department of Medical Informatics; Academic Medical Center; University of Amsterdam; Amsterdam the Netherlands
4. Department of General Practice and Elderly Care Medicine; EMGO Institute for Health and Care Research; VU University Medical Center; Amsterdam the Netherlands
5. Department of Geriatrics; University Medical Center Groningen; Groningen the Netherlands