1. Department of Primary and Community Care, Center for Family Medicine, Geriatric Care and Public Health, Radboud university medical center, Nijmegen, The Netherlands
2. Alzheimer Center, Radboud university medical center, Nijmegen, The Netherlands
3. Department of General Practice, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
4. Section Biostatistics, Department of Health Evidence, Radboud Institute for Health Sciences, Radboud university medical center, Nijmegen, The Netherlands
5. Department of General Practice and Elderly Care Medicine/ EMGO+ Institute for Health and Care Research, VU Medical Center, Amsterdam, The Netherlands
6. Joachim en Anna, Center for Specialized Geriatric Care, Nijmegen, The Netherlands