1. Department of General Practice and Elderly Care Medicine/EMGO + Institute for Health and Care Research; VU Medical Center; Amsterdam The Netherlands
2. Trainings Center for Residents in Elderly Care Medicine Gerion/VU Medical Center; Amsterdam The Netherlands
3. Zonnehuisgroep IJssel-Vecht; Zwolle The Netherlands
4. Department of Clinical Psychology, Faculty of Psychological and Educational Sciences; EMGO + Institute for Health and Care Research, VU University; Amsterdam The Netherlands
5. Netherlands Institute of Mental Health and Addiction; Utrecht The Netherlands
6. Department of Primary and Community Care: Centre for Family Medicine, Geriatric Care and Public Health; Radboud University Nijmegen Medical Centre; Nijmegen The Netherlands