1. Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
2. Servei de Neurologia-Neuroimmunologia, Centre d’Esclerosi Múltiple de Catalunya (Cemcat), Vall d’Hebron Hospital Universitari, Universitat Autònoma de Barcelona, Barcelona, Spain
3. Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
4. Laboratory of Hematology, Sheba Medical Center, Ramat Gan, Israel
5. Department of Neurology, Medical University of Graz, Graz, Austria
6. Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA/Department of Neurology, Mayo Clinic, Rochester, MN, USA
7. Neurochemistry Laboratory, Department of Clinical Chemistry, Amsterdam Neuroscience, Program Neuroinflammation, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
8. CSF Laboratory, Department of Neurology, University of Ulm, Ulm, Germany
9. Biostatistics Unit, Department of Immunology, Hospital Universitario Ramón y Cajal, Madrid, Spain
10. Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
11. Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden/Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Gothenburg, Sweden/Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK/UK Dementia Research Institute at UCL, London, UK/Hong Kong Center for Neurodegenerative Diseases, Hong Kong, China