1. Molecular and Clinical Sciences Research Institute, St. Georges University of London, London, United Kingdom
2. Department of Neurology, Herlev Hospital, Herlev Ringvej 75, 2730 Herlev, Denmark
3. Department of Cellular Pathology, St. George’s University Hospitals NHS Foundation Trust, Blackshaw Road, SW17 0QT, London, United Kingdom
4. Department of Neurology, St. George’s University Hospitals NHS Foundation Trust, London, Blackshaw Road, SW17 0QT, United Kingdom