1. Walton Centre NHS Foundation Trust, Lower Lane, Liverpool, UK
2. University of Liverpool, Liverpool, UK
3. Salford Royal Foundation Trust, Manchester, UK
4. Sheffield Institute for Translational Neuroscience, Sheffield, UK
5. Royal Victoria Infirmary, Newcastle upon Tyne, UK
6. Department of Basic and Clinical Neuroscience, King’s College London, Maurice Wohl Clinical Neuroscience Institute, London, UK
7. Department of Neurology, King’s College Hospital, London, UK
8. Lancashire Teaching Hospital, Preston, UK
9. University of Cambridge, Cambridge, UK and
10. Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK