[1] Rigshosp Glostrup, Ctr Head & Orthopaed, Ctr Rheumatol & Spine Dis, DK-2600 Glostrup, Denmark
[2] Univ Hosp Southern Denmark, Danish Hosp Rheumat Dis, Sonderborg, Denmark
[3] Univ Southern Denmark, Dept Reg Hlth Res, Odense, Denmark
[4] Maastricht Univ, Med Ctr, Dept Med, Div Rheumatol, Maastricht, Netherlands
[5] Maastricht Univ, CAPHRI Care & Publ Hlth Res Inst, Maastricht, Netherlands
[6] Univ Twente, Dept Psychol Hlth & Technol, Enschede, Netherlands
[7] Diakonhjemmet Hosp, Dept Rheumatol, Natl Advisory Unit Rehabil Rheumatol, Oslo, Norway
[8] Hosp Garcia de Orta, Dept Rheumatol, Almada, Portugal
[9] Karolinska Inst, Dept Neurobiol Care Sci & Soc, Div Physiotherapy, Stockholm, Sweden
[10] Karolinska Univ Hosp, Allied Hlth Profess Funct, Funct Area Occupat Therapy & Physiotherapy, Stockholm, Sweden
[11] BOPRD, Sofia, Bulgaria
[12] Univ Aquila, Sch Med, Dept Biotechnol & Appl Clin Sci, Rheumatol Unit, Laquila, Italy
[13] ASL1 Avezzano Sulmona Laquila, Dept Med, Laquila, Italy
[14] Hop Gabriel Montpied, Dept Rheumatol, Clermont Ferrand, France
[15] Ctr Hosp & Univ Coimbra, Dept Rheumatol, Coimbra, Portugal
[16] Nursing Sch Coimbra, Hlth Sci Res Unit Nursing UICiSA E, Coimbra, Portugal
[17] Hannover Med Sch, Clin Immunol & Rheumatol, Hannover, Germany
[18] Univ Basel, DPH, INS, Basel, Switzerland
[19] Univ Hosp Bern, Inselspital, Dept Rheumatol Immunol & Allergol, Bern, Switzerland
[20] Lahti Univ Appl Sci, Fac Social & Hlth Care, Lahti, Finland
[21] Med Univ Innsbruck, Clin 2, Dept Internal Med, Innsbruck, Austria
[22] Our Ladys Hosp & Care Serv, Rheumat Musculoskeletal Dis Unit, Dublin, Ireland
[23] Univ Politecn Marche, Osped C Urbani, Clin Reumatol, Jesi, An, Italy
[24] Univ West England, Dept Nursing & Midwifery, Bristol, Avon, England
[25] Univ Med Ctr Ljubljana, Dept Rhematol, Ljubljana, Slovenia
[26] Inst Rheumatol, Dept Rehabil, Prague, Czech Republic
[27] Alicante Gen & Univ Hosp, Day Hosp Unit, Alicante, Spain
[28] Univ Leeds, Sch Healthcare, Leeds, W Yorkshire, England
[29] Maastricht Univ, Med Ctr, Dept Clin Epidemiol & Med Technol Assessment, Maastricht, Netherlands