1. Spinal Cord Injury Center, Balgrist University Hospital, Zurich, Switzerland
2. Spinal Cord Injury Center, Balgrist University Hospital, Zurich, Switzerland, European Multicenter Study of Human Spinal Cord Injury (EM-SCI) Group, Zurich, Switerland
3. European Multicenter Study of Human Spinal Cord Injury (EM-SCI) Group, Zurich, Switerland, ICORD and Division of Neurology, University of British Columbia, Vancouver, BC, Canada