[1] Swiss Parapleg Ctr, Nottwil, Switzerland
[2] Swiss Parapleg Res, Nottwil, Switzerland
[3] Univ Groningen, Univ Med Ctr Groningen, Dept Rehabil Med, Groningen, Netherlands
[4] Univ Med Ctr Utrecht, Ctr Excellence Rehabil Med, Brain Ctr Rudolf Magnus, Utrecht, Netherlands
[5] De Hoogstraat Rehabil, Utrecht, Netherlands
[6] Inst Dialog Eth, Zurich, Switzerland
[7] Univ Zurich, Inst Biomed Eth & Hist Med, Zurich, Switzerland