Affiliations

• ¹ Bristol Institute of Clinical Neurosciences, Learning and Research Building, Southmead Hospital, Bristol, UK.
• ² Department of Neurology, St George's University Hospital, London, UK.
• ³ Department of Neurology, Basingstoke Hospital, Basingstoke, UK.
• ⁴ Department of Neurology, National Hospital for Neurology and Neurosurgery, University College, London, UK.
• ⁵ Department of Neurology, Queen's Hospital, Romford, UK.
• ⁶ Department of Neurology, University of Cambridge, Cambridge, UK.
• ⁷ Department of Neurology, Barts and The London School of Medicine and Dentistry, London, UK.
• ⁸ Department of Neurology, Hurstwood Park Neurological Centre, Haywards Heath.
• ⁹ Department of Neurology, Department of Neurology, Barts and The London School of Medicine and Dentistry, London, UK.
• ¹⁰ Department of Neurology, University Hospital, Coventry, UK.
• ¹¹ Department of Neurology, Kings' College Hospital, London, UK.
• ¹² Department of Neurology, The Walton Hospital, Liverpool, UK.
• ¹³ Department of Neurology, University of Plymouth, Plymouth, UK.