1. Department of Primary and Community Care, Centre for Family Medicine, Geriatric Care and Public Health, Radboud University Medical Centre, Nijmegen Huispost 117 ELG, PO Box 9101, 6500 HB Nijmegen, The Netherlands
2. Joachim and Anna, Centre for Specialized Geriatric care, Nijmegen, Radboudumc Alzheimer Centrum, Nijmegen
3. Department of General Practice and Elderly Care Medicine/EMGO+ Institute for Health and Care Research, VU Medical Centre, PO Box 7057, 1007 MB Amsterdam, The Netherlands
4. Dutch Institute for Rational Use of Medicine, PO Box 3089, 3502 GB Utrecht, The Netherlands
5. Department for Health Evidence, Group Biostatistics, Radboud Institute of Health Sciences, Radboud University Medical Centre, Nijmegen Huispost 133 HEV, PO Box 9101, 6500 HB Nijmegen, The Netherlands
6. Department of General Practice and Elderly Care Medicine, University of Groningen, University Medical Centre Groningen, HPC FA21, PO Box 196, 9700 AD Groningen
7. Radboudumc Alzheimer Centrum, Nijmegen