1. The GRASSP Study Group (Graded Redefined Assessment of Strength, Sensibility, and Prehension), EM-SCI Study Group (European Multicenter Study on Human Spinal Cord Injury), Spinal Cord Injury Center, Balgrist University Hospital, Zurich, Switzerland
2. Spinal Cord Injury Center, Balgrist University Hospital, Zurich, Switzerland, , EM-SCI Study Group (European Multicenter Study on Human Spinal Cord Injury)