1 Division of Brain Health, Imperial College London, Charing Cross Hospital, London W6 8RF, UK. Electronic address: raad.shakir@wfneurology.org.
2 Melbourne Brain Centre, Royal Melbourne Hospital and University of Melbourne, Parkville, VIC, Australia.
3 Lund University, Lund, Sweden.
4 Kaiser Franz Josef Hospital, Vienna, Austria.
5 Department of Neurology, Sir Charles Gairdner Hospital, Perth, WA, Australia; Centre for Neuromuscular and Neurological Disorders, Western Australian Neuromuscular Research Insitiute, University of Western Australia, WA, Australia.
6 National Institute for Stroke and Applied Neurosciences, Auckland University of Technology, Auckland, New Zealand.
7 University of Western Ontario, London, ON, Canada.