[1] Univ Montpellier, Lapeyronie Hosp, Dept Rheumatol, UMR 5535, Montpellier, France
[2] Amsterdam & Zuyderland Med Ctr, Amsterdam Rheumatol Ctr, Dept Clin Immunol & Rheumatol, Amsterdam, Netherlands
[3] Med Univ Vienna, Div Rheumatol, Dept Med 3, Vienna, Austria
[4] Hosp Univ Princesa, IIS IP, Serv Reumatol, Biol Therapies Unit, Madrid, Spain
[5] EULAR Standing Comm People Arthrit Rheumatism Eur, Zurich, Switzerland
[6] Karolinska Inst, Dept Neurobiol Care Sci & Soc, Div Physiotherapy, Huddinge, Sweden
[7] Danderyd Hosp, Dept Orthopaed, Stockholm, Sweden
[8] Charite, Dept Rheumatol & Clin Immunol, Berlin, Germany
[9] Univ Med & Pharm, Dept Rheumatol, Ctr Rheumat Dis, Bucharest, Romania
[10] St Vincents Univ Hosp, Dublin Acad Med Ctr, Ctr Arthrit & Rheumat Dis, Dept Rheumatol, Dublin, Ireland
[11] Paris Descartes Univ, Cochin Hosp, AP HP, Rheumatol Dept B,Fac Med, Paris, France
[12] Univ Leeds, Leeds Inst Rheumat & Musculoskeletal Med, Leeds NIHR Musculoskeletal Biomed Res Unit, LTHT, Leeds, W Yorkshire, England
[13] Catholic Univ, Fdn Policlin Gemelli Acad Hosp, Sch Med, Rome, Italy
[14] Hosp Santa Maria, Lisbon Acad Med Ctr, Dept Rheumatol, Lisbon, Portugal
[15] Univ Lisbon, Fac Med, Inst Med Mol, Lisbon, Portugal
[16] Univ Birmingham, Inst Inflammat & Ageing, Rheumatol Res Grp, Birmingham, W Midlands, England
[17] Sandwell & West Birmingham Hosp NHS Trust, Birmingham, W Midlands, England
[18] Complexo Hosp Univ Ferrol, Rheumatol Dept, La Coruna, Spain
[19] Univ Debrecen, Dept Rheumatol, Fac Med, Debrecen, Hungary
[20] Diakonhjemmet Hosp, Dept Rheumatol, Oslo, Norway
[21] Leiden Univ, Med Ctr, Dept Rheumatol, Leiden, Netherlands
[22] Erasmus MC, Dept Rheumatol, Rotterdam, Netherlands
[23] Acad Med Ctr, Dept Clin Immunol & Rheumatol, Amsterdam, Netherlands