1. Department of Neuroinflammation, Institute of Neurology, University College London, Queen Square, London, WC1N 3BG, UK,
2. Department of Neurology, University of Copenhagen, Glostrup, Copenhagen, DK-2600, Denmark
3. Danish Research Centre of Magnetic Resonance, Copenhagen University Hospital, Hvidovre Hospital, Hvidovre, DK-2650, Denmark
4. Department of Neuroinflammation, Institute of Neurology, University College London, Queen Square, London, WC1N 3BG, UK, Medical Statistics Unit, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
5. Department of Neuroinflammation, Institute of Neurology, University College London, Queen Square, London, WC1N 3BG, UK