1. Swiss Paraplegic Centre; Nottwil Switzerland
2. Swiss Paraplegic Research; Nottwil Switzerland
3. University of Groningen; University Medical Center Groningen; Department of Rehabilitation Medicine; Groningen the Netherlands
4. Center of Excellence in Rehabilitation Medicine; Brain Center Rudolf Magnus; University Medical Center Utrecht and De Hoogstraat Rehabilitation; Utrecht the Netherlands
5. Institute Dialog Ethik; Zurich Switzerland
6. Institute of Biomedical Ethics and History of Medicine; University of Zurich; Zurich Switzerland