1. Division of Psychiatry, University College London, London, UK
2. School of Dementia Studies, Faculty of Health Studies, University of Bradford, Bradford, UK
3. Department of Primary and Community Care, Centre for Family Medicine, Geriatric Care and Public Health, Medical Centre, Radboud University Nijmegen, Nijmegen, The Netherlands
4. Joachim en Anna, Centre for Specialized Geriatric Care, Nijmegen, The Netherlands
5. Radboud Alzheimer Centre, Nijmegen, The Netherlands