1. St Pancras Rehabilitation Unit, London, Central and North West London NHS Foundation Trust
2. Department of Brain Repair and Rehabilitation, UCL Queen Square Institute of Neurology, London, UK
3. Institute of Cognitive Neuroscience, UCL, 17 Queen Square, London, UK
4. The National Hospital for Neurology and Neurosurgery, Queen Square, University College London Hospitals NHS Foundation Trust, London, UK