University College London - UCL Queen Square Institute of Neurology, University College London, Monash University, University College London, Government of the United Kingdom - Moorfields Eye HospitalUniversity College London - UCL Queen Square Institute of Neurology, University College London, VU University Amsterdam - Department of Radiology & Nuclear Medicine, University College London - UCL Queen Square Institute of Neurology, University College London - UCL Queen Square Institute of Neurology, University of Birmingham, University College London - University College London Hospitals NHS Foundation Trust, University College London, University College London, Karolinska Institutet - Department of Clinical Neuroscience, affiliation not provided to SSRN, Karolinska Institutet - Neuroimmunology Unit, Karolinska Institutet - Department of Clinical Neuroscience and University College London