1. Spinal Cord Injury Center Balgrist; University Hospital Zurich, University of Zurich; Zurich Switzerland
2. Wellcome Trust Centre for Neuroimaging; UCL Institute of Neurology, University College London; London United Kingdom
3. Department of Neurophysics; Max Planck Institute for Human Cognitive, and Brain Sciences; Leipzig Germany
4. Department of Brain Repair and Rehabilitation; UCL Institute of Neurology, University College London; London United Kingdom