1. National Hospital for Neurology and Neurosurgery, Queen Square, London, United Kingdom
2. University College London Queen Square Institute of Neurology, Queen Square, London, United Kingdom
3. Oxford University Hospitals National Health Service Foundation Trust, Oxford, United Kingdom
4. Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
5. Lysholm Department of Neuroradiology, National Hospital for Neurology and Neurosurgery, Queen Square, London, United Kingdom