[1] Tech Univ Dresden, Univ Hosp Carl Gustav Carus, Comprehens Pain Ctr, Fetscherstr 74, D-01307 Dresden, Germany
[2] Univ Appl Sci, Dept Appl Hlth Sci, Bochum, Germany
[3] Tech Univ Dresden, Hosp & Med Fac Carl Gustav Carus, Ctr Evidence Based Healthcare, Dresden, Germany
[4] Queen Margaret Hosp, Dunfermline, Fife, Scotland
[5] Univ Regensburg, Inst Epidemiol & Prevent Med, Med Sociol, Regensburg, Germany
[6] Amper Kliniken Dachau, Dept Pain Therapy, Dachau, Germany
[7] Pelv Pain Support Network, Poole, Dorset, England
[8] Swedish Assoc Physiotherapists, Stockholm, Sweden
[9] Univ Med Hosp Hamburg Eppendorf UKE, Ctr Anesthesiol & Intens Care Med, Dept Anesthesiol Pain Med & Pain Psychol, Hamburg, Germany
[10] UCL, Res Dept Clin Educ & Hlth Psychol, London, England
[11] German Federat Physiotherapy, Cologne, Germany
[12] Lubeck Univ, Med Sch, Dept Anesthesiol, Lubeck, Germany
[13] Univ Appl Sci Utrecht, Fac Hlth Care, Res Grp Lifestyle & Hlth, Utrecht, Netherlands
[14] German Pain League, Frankfurt, Germany
[15] Sapienza Univ Rome, Reg Referral Headache Ctr, St Andrea Hosp, Dept Clin & Mol Med, Rome, Italy
[16] Kings Coll London, Hlth Psychol Sect, Dept Psychol, London, England
[17] Maastricht UMC, Univ Pain Ctr Maastricht, Res & Qual Assessment, Anesthesiol & Pain Med, Maastricht, Netherlands
[18] DRK Pain Ctr Mainz, Day Care Unit, Mainz, Germany
[19] Vrije Univ Brussel, Fac Phys Educ & Physiotherapy, Dept Physiotherapy Human Physiol & Anat, Brussels, Belgium
[20] Patient Federat SchmerzLOS eV, Lubeck, Germany
[21] Univ Alabama Birmingham, Sch Publ Hlth, Div Epidemiol, Birmingham, AL 35294 USA
[22] Vrije Univ Amsterdam, Med Ctr, Amsterdam Publ Hlth Res Inst, Dept Epidemiol & Biostat, Amsterdam, Netherlands
[23] Fac Med, Dept Epidemiol & Community Med, Ottawa, ON, Canada
[24] Univ Leuven, Res Grp Hlth Psychol, Leuven, Belgium
[25] Neuruppin & Witten Herdecke Univ, Brandenburg Med Sch, Neuruppin, Germany