1. University of Birmingham; Department of Neurology; City Hospital NHS Trust Dudley Road Birmingham West MIdlands UK B18 7QH
2. Newcastle University; Institute of Health & Society; 21 Claremont Place Newcastle-upon-Tyne UK NE2 4AA.
3. City Hospital, Sandwell and West Birmingham Hospitals NHS Trust; Department of Neurology; Dudley Road Birmingham West Midlands UK B18 7QH