1. Spinal Cord Injury Center, Balgrist University Hospital, Zurich, Switzerland, Institute of Human Movement Sciences and Sport, Swiss Federal Institute of Technology, Zurich, Switzerland,
2. Spinal Cord Injury Center, Balgrist University Hospital, Zurich, Switzerland, The European Multicenter Study of Human Spinal Cord Injury Group (EM-SCI)
3. Spinal Cord Injury Center, Balgrist University Hospital, Zurich, Switzerland
4. The European Multicenter Study of Human Spinal Cord Injury Group (EM-SCI), ICORD and Division of Neurology, University of British Columbia, Vancouver, Canada