[1] Vrije Univ Brussel VIB, Dept Hlth Sci & Med Sociol, Fac Med & Pharm, B-1090 Brussels, Belgium
[2] Katholieke Univ Leuven VIB, Fac Kinesiol & Rehabil Sci, Dept Rehabil Sci, B-3000 Louvain, Belgium
[3] Fachklin Herzogenaurach, Herzogenaurach, Germany
[4] Univ Hosp Pellenberg, Pellenberg, Belgium
[5] RehaClin Zurzach, Zurzach, Switzerland