1. Paracelsus‐Elena‐Klinik Kassel Germany
2. Department of Neurology University Medical Center Goettingen Germany
3. Department of Biostatistics Columbia University Mailman School of Public Health New York City New York USA
4. Department of Psychiatry and Neurochemistry the Sahlgrenska Academy at the University of Gothenburg Mölndal Sweden
5. Clinical Neurochemistry Laboratory Sahlgrenska University Hospital Mölndal Sweden
6. Neurological Disorders Research Center Qatar Biomedical Research Institute (QBRI), and College of Science and Engineering HBKU, Education City Qatar Foundation Doha Qatar
7. Department of Pathology & Laboratory Medicine and Center for Neurodegenerative Disease Research Institute on Aging University of Pennsylvania Philadelphia PA USA
8. BioLegend Dedham MA USA
9. Meso Scale Discovery Gaithersburg MD USA
10. ADx NeuroSciences Gent Belgium
11. Proteomics Core Facility Ecole Polytechnique Fédérale de Lausanne (EPFL) LausanneSwitzerland
12. University of Washington Seattle WA USA
13. Institute of Neuropathology University Medical Center Goettingen Germany
14. Laboratory of Molecular and Chemical Biology of Neurodegeneration Brain Mind Institute Institute of Physics of Biological Systems Ecole Polytechnique Fédérale de Lausanne (EPFL) CH‐1015 Lausanne Switzerland
15. VU University Medical Center Amsterdam the Netherlands
16. Bioclinica Lyon France
17. Michael J. Fox Foundation for Parkinson's Research New York City New York USA
18. Department of Molecular Neuroscience UCL Institute of Neurology Queens Square London UK
19. UK Dementia Research Institute at UCL London UK