[1] Swiss Parapleg Res, Nottwil, Switzerland
[2] SPF Nottwil, WHO FIC CC DIMDI, ICF Res Branch, Nottwil, Switzerland
[3] Univ Munich, IHRS, Munich, Germany
[4] Univ Lucerne, Luzern, Switzerland
[5] Hannover Med Sch, Dept Rehabil Med, Hannover, Germany
[6] Hannover Med Sch, Coordinat Ctr Rehabil Res, Hannover, Germany
[7] UMDNJ, New Jersey Med Sch, Dept Phys Med & Rehabil, Newark, NJ USA
[8] Kessler Fdn, Res Ctr, W Orange, NJ USA
[9] Thomas Jefferson Univ, Jefferson Med Coll, Dept Rehabil Med, Philadelphia, PA 19107 USA
[10] Queens Univ, Dept Philosophy, Kingston, ON, Canada
[11] World Hlth Org, Geneva, Switzerland
[12] Univ Munich, Munich Univ Hosp, Dept Phys & Rehabil Med, Munich, Germany