1. Nurse Consultant, National Hospital for Neurology and Neurosurgery, University College London NHS Trust, Queen Square, London
2. Neurologist, Queen Square MS Centre, Department of Neuroinflammation, UCL Institute of Neurology, London
3. Neurologist, Royal Free London NHS Foundation Trust, London
4. Neurologist, Department of Neurology, Barts Health NHS Trust, London
5. Neurologist, National Hospital for Neurology and Neurosurgery, University College London NHS Trust, Queen Square, London, and Royal Free London NHS Foundation Trust, London