[1] Charite Univ Med Berlin, Phys Med & Rehabil, Charitepl 1, D-10117 Berlin, Germany
[2] Ludmillenstift, Fruhrehabil, Meppen, Germany
[3] Phys & Rehabil Med, Hamburg, Germany
[4] Ifi Inst Interdisziplinare Med, Rehabil Med, Hamburg, Germany
[5] Univ Giessen, Dept Rheumatol Osteol & Phys Med, Kerckhoff Klin, Bad Nauheim, Germany
[6] Rehaklin Bethel, Geriatr Rehabil, Trossingen, Germany
[7] Martin Luther Univ Halle Wittenberg, Med Fak, Inst Rehabil Med, Halle, Saale, Germany
[8] KV Regiomed Lehrpraxis, Schmerzmed, Birkenwerder, Germany
[9] Paracelsus Med Privatuniv Nurnberg, Nurnberg, Germany
[10] Sporthopaedicum Regensburg, Regensburg, Germany
[11] Univ Klinikum Jena, Inst Physiotherapie, Jena, Germany
[12] Ludwig Maximilians Univ Munchen, Klin & Poliklin Orthopadie Phys Med & Rehab, Munich, Germany
[13] Hannover Med Sch, Rehabil Med, Hannover, Germany