1. Department of Neuroradiology, Clinical Neuroscience Center University Hospital Zurich & University of Zurich Zurich Switzerland
2. Spinal Cord Injury Center Balgrist University Hospital, University of Zurich Zurich Switzerland
3. Department of Neurology, Inselspital Bern University Hospital, University of Bern Bern Switzerland
4. Institute for Biomedical Engineering University and ETH Zürich Zürich Switzerland