1. Department of Neuromuscular Diseases, Barts Health NHS Trust , London E1 1BB , UK
2. Department of Neuromuscular Diseases, University College London , London WC1N 3BG , UK
3. Centre for Neuromuscular Disease, National Hospital for Neurology and Neurosurgery , London WC1N 3BG , UK
4. NHS Neuroimmunology and CSF Laboratory, Queen Square Institute of Neurology , London WC1N 3BG , UK
5. Department of Neuroinflammation, University College London , London WC1N 3BG , UK
6. UK Dementia Research Institute, University College London , London WC1E 6BT , UK
7. Department of Neurodegenerative Disease, UCL Institute of Neurology , London WC1N 3BG , UK
8. Hong Kong Center for Neurodegenerative Diseases , Hong Kong , China
9. Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison , Madison, WI 53792 , USA
10. Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg , Mölndal 431 41 , Sweden
11. Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital , Mölndal 431 41 , Sweden
12. Department of Neurology and Neurophysiology, Amsterdam Neuroscience, Amsterdam UMC, Location AMC, University of Amsterdam , 1081 HV Amsterdam , The Netherlands
13. Nuffield Department of Clinical Neurosciences, University of Oxford , Oxford OX3 9DU , UK
14. UCL Clinical and Movement Neurosciences Department, National Hospital for Neurology and Neurosurgery, UCL Institute of Neurology , London WC1E 6BT , UK