1. Department of Neurology and Neurosurgery, University Medical Center Utrecht, Utrecht, The Netherlands
2. Department of Internal Medicine, Geriatrics Section, Amsterdam Cardiovascular Science, Amsterdam University Medical Center (Amsterdam UMC), Amsterdam, The Netherlands
3. Department of Neurology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
4. Department of Clinical Chemistry, Neurochemistry Laboratory, Amsterdam Neuroscience, Amsterdam University Medical Center (Amsterdam UMC), Amsterdam, The Netherlands
5. Department of Neurology, Alzheimer Center Amsterdam, Amsterdam Neuroscience, Amsterdam University Medical Center (Amsterdam UMC), Amsterdam, The Netherlands
6. Department of Epidemiology, Amsterdam University Medical Center (Amsterdam UMC), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
7. Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands
8. Department of Radiology and Nuclear Medicine and Alzheimer Center, Erasmus University Medical Center, Rotterdam, The Netherlands