1. Department of Neurology; Department of Laboratory Medicine; Radboud University Medical Center; Radboud Alzheimer Centre; Donders Institute for Brain, Cognition and Behaviour; Nijmegen The Netherlands
2. Neurochemistry Laboratory and Biobank; Department of Clinical Chemistry; VU University Medical Center; Amsterdam The Netherlands
3. Department of Psychiatry and Psychotherapy; Faculty of Medicine; LVR-Hospital Essen; University of Duisburg-Essen; Essen Germany
4. Department of Psychiatry and Psychotherapy; University Medical Center Goettingen; Georg-August-University; Goettingen Germany
5. Reference Center for Biological Markers of Dementia (BIODEM); Institute Born-Bunge; University of Antwerp; Antwerp Belgium
6. Department of Chemistry; Technische Universität Dresden; Dresden Germany
7. Memory Clinic and Department of Neurology; Hospital Network Antwerp (ZNA); Antwerp Belgium
8. Alzheimer Center VUmc; Amsterdam The Netherlands
9. R&D; ADx NeuroSciences; Ghent Belgium