[1] Zurich Univ Appl Sci, Inst Physiotherapy, Sch Hlth Profess, Winterthur, Switzerland
[2] Leiden Univ, Med Ctr, Dept Orthopaed Rehabil & Phys Therapy, Leiden, Netherlands
[3] Rheumazentrum Ruhrgebiet, Herne, Germany
[4] Ruhr Univ, Bochum, Germany
[5] Univ Southampton, Fac Hlth Sci, Southampton, Hants, England
[6] Univ Southampton, Arthrit Res UK Ctr Excellence Sport Exercise & Os, Southampton, Hants, England
[7] Danderyd Univ Hosp Corp, Dept Orthopaed, Stockholm, Sweden
[8] Karolinska Inst, Div Physiotherapy, Care Sci & Soc, Dept Neurol, Huddinge, Sweden
[9] Diakonhjemmet Hosp, Natl Advisory Unit Rehabil Rheumatol, Oslo, Norway
[10] Marmara Univ, Sch Med, Div Rheumatol, PMR Dept, Istanbul, Turkey
[11] Rigshosp, Ctr Head & Orthopaed, Ctr Rheumatol & Spine Dis, Copenhagen Ctr Arthrit Res, Glostrup, Denmark
[12] Univ Copenhagen, Fac Hlth & Med Sci, Dept Clin Med, Copenhagen, Denmark
[13] Tech Univ Dresden, Univ Med, Univ Ctr Orthopaed & Traumatol, Dresden, Germany
[14] ECORYS Nederland BV, Dept Social Affaire & Hlth, Rotterdam, Netherlands
[15] Univ Southern Denmark, Dept Sports Sci & Clin Biomech, Odense, Denmark
[16] Univ Copenhagen, Herlev & Gentofte Hosp, Dept Occupat & Phys Therapy, Copenhagen, Denmark
[17] Univ Limerick, Res Inst, Fac Educ & Hlth Sci & Hlth, Sch Allied Hlth, Limerick, Ireland
[18] Univ Helsinki, Fac Social Sci, Dept Social Psychol, Helsinki, Finland
[19] Vrije Univ Amsterdam Med Ctr, Amsterdam Rheumatol & Immunol Ctr, Dept Rheumatol, Amsterdam, Netherlands
[20] Univ Algarve, Ctr Biomed Res, Faro, Portugal
[21] ReumaNet, EULAR PARE Patient Res Partner, Leuven, Belgium
[22] Katholieke Univ Leuven, Skeletal Biol & Engn Res Ctr, Dept Dev & Regenerat, Leuven, Belgium
[23] Univ Hosp Leuven, Div Rheumatol, Leuven, Belgium
[24] Cyprus League Rheumatism, EULAR Patient Res Partner, Nicosia, Cyprus
[25] Keele Univ, Primary Hlth Care Sci, Keele, Staffs, England
[26] Bulgarian Ankylosing Spondylitis Patient Soc, PRP Patient Res Partner EULAR, Sofia, Bulgaria
[27] ASIF, London, England