1. Swiss Paraplegic Research Nottwil Switzerland
2. Institute of Social and Preventive Medicine University of Bern Bern Switzerland
3. Graduate School for Health Sciences University of Bern Bern Switzerland
4. Swiss Paraplegic Centre Nottwil Switzerland
5. Clinique Romande de Réadaptation Sion Switzerland
6. Spinal Cord Injury Center Balgrist University Hospital Zurich Switzerland