1. De Wever, Centre for Elderly Care, Tilburg, The Netherlands
2. Department of Primary and Community Care, Centre for Family Medicine, Geriatric Care and Public Health, Radboud University Medical Centre, Nijmegen, The Netherlands
3. Florence, Mariahoeve, Centre for Specialized Care in Young-onset Dementia, Den Haag, The Netherlands
4. Radboud Alzheimer Centre, Radboud University, Medical Centre, Nijmegen, The Netherlands
5. School for Mental Health and Neuroscience, Alzheimer Centre Limburg, Maastricht University Medical Centre, Maastricht, The Netherlands
6. Department of Neurology and Alzheimer Centre, VU University Medical Centre, Amsterdam, The Netherlands
7. Joachim en Anna, Centre for Specialized Geriatric Care, Nijmegen, The Netherlands