1. Department of Neuroinflammation, Institute of Neurology, Queen Square, London, WC1N 3BG, United Kingdom
2. Dementia Research Centre, Institute of Neurology, London, United Kingdom
3. London School of Hygiene and Tropical Medicine, London, United Kingdom
4. Department of Neurology, Royal Free Hospital, London, United Kingdom
5. National Hospital for Neurology and Neurosurgery, London, United Kingdom
6. Department of Clinical Neuroscience, King's College London, London, United Kingdom