1. Department of Neurology/Alzheimer Center, VU Medical Center, Amsterdam, The Netherlands
2. Department of Psychiatry and Neuropsychology, Maastricht University, School for Mental Health and Neuroscience, Alzheimer Center Limburg, VU Medical Center, Amsterdam, The Netherlands
3. Department of Epidemiology and Biostatistics, VU Medical Center, Amsterdam, The Netherlands
4. Department of Clinical Chemistry, VU Medical Center, Amsterdam, The Netherlands
5. Department of Radiology, VU Medical Center, Amsterdam, The Netherlands