1. MRC Centre for Neuromuscular Diseases UCL Institute of Neurology Queen Square London United Kingdom
2. Department of Brain Repair Rehabilitation UCL Institute of Neurology Queen Square, London, United Kingdom
3. National Hospital for Neurology Neurosurgery, Queen Square, London, United Kingdom
4. Department of Neuroinflammation, UCL Institute of Neurology, Queen Square, London, United Kingdom
5. Advanced MRI Group, Department of Medical Physics Bioengineering, University College London, Queen Square, London, United Kingdom
6. Wellcome Trust Centre for Neuroimaging, UCL Institute of Neurology, Queen Square, London, United Kingdom