1. Swiss Paraplegic Research, Nottwil, Switzerland
2. Department of Health Sciences and Health Policy, University of Lucerne, Lucerne, Switzerland
3. Swiss Paraplegic Centre, Nottwil, Switzerland
4. Swiss Paraplegics Association, Nottwil, Switzerland
5. Institute of Primary and Community Care, Luzern, Switzerland
6. ParaHelp, Nottwil, Switzerland