1. Department of Neurology and Alzheimer CenterVU University Medical CenterAmsterdamThe Netherlands
2. Department of Nuclear Medicine and PET ResearchVU University Medical CenterAmsterdamThe Netherlands
3. Department of Epidemiology and BiostatisticsVU University Medical CenterAmsterdamThe Netherlands
4. Department of Psychiatry and PsychologySchool for Mental Health and Neuroscience, Maastricht University Medical CentreAlzheimer Centre LimburgMaastrichtThe Netherlands
5. Department of NeurologyRadboud UniversityNijmegen Medical CentreNijmegenThe Netherlands
6. Department of Laboratory MedicineRadboud UniversityNijmegen Medical CentreNijmegenThe Netherlands
7. Department of RadiologyLeiden University Medical CenterLeidenThe Netherlands