1. Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands, Groenhuysen Organisation, Roosendaal, The Netherlands
2. Radboud University Medical Center, Radboud Institute for Health Sciences, IQ Healthcare, Nijmegen, The Netherlands
3. Department of Neurology, Bronovo Medical Center, The Hague, The Netherlands
4. Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
5. Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Department of Neurology, Nijmegen, The Netherlands
6. Radboud University Medical Center, Department of Primary and Community care, Centre for Family Medicine, Geriatric Care and Public health, Nijmegen, The Netherlands
7. Joachim & Anna, Center for Specialized Geriatric Care, Nijmegen