[1] Linkoping Univ, Dept Med & Hlth Sci, Linkoping, Sweden
[2] Linkoping Univ, Dept Behav Sci & Learning, Linkoping, Sweden
[3] Umea Univ, Dept Community Med & Rehabil, Rehabil Med, Umea, Sweden
[4] Umea Univ, Dept Community Med & Rehabil, Physiotherapy, Umea, Sweden
[5] Linkoping Univ, Dept Med & Hlth Sci, Fac Med & Hlth Sci, Pain & Rehabil Ctr,Anaesthet Operat & Specialty S, Linkoping, Sweden
[6] Karolinska Inst, Dept Clin Sci, Stockholm, Sweden
[7] Danderyd Hosp, Dept Rehabil Med, Stockholm, Sweden