1. Department of Internal Medicine, Section of Geriatric Medicine, Academic Medical Center; University of Amsterdam; Amsterdam The Netherlands
2. Department of Medical Psychology/Hospital Psychiatry; Slotervaartziekenhuis; Amsterdam The Netherlands
3. Department of Geriatrics; Slotervaartziekenhuis; Amsterdam The Netherlands
4. Department of Old Age Psychiatry Parnassia; The Hague The Netherlands
5. Department of General Practice, Academic Medical Center; University of Amsterdam; Amsterdam The Netherlands
6. Department of Medical Psychology, Academic Medical Center; University of Amsterdam; Amsterdam The Netherlands
7. Faculty of Social and Behavioural Science, programme group Brain and Cognition; University of Amsterdam; Amsterdam The Netherlands
8. University Center of Geriatric Medicine, University Medical Center Groningen; University of Groningen; Groningen The Netherlands