[1] Med Univ Vienna, Div Rheumatol, Dept Med 3, A-1090 Vienna, Austria
[2] Univ Amsterdam, Med Ctr, Amsterdam, Netherlands
[3] Zuyderland Med Ctr, Heerlen, Netherlands
[4] Univ Med Ctr Utrecht, Dept Rheumatol & Clin Immunol, Utrecht, Netherlands
[5] Free Univ, Charite Univ Med Berlin, Dept Rheumatol & Clin Immunol, Berlin, Germany
[6] Humboldt Univ, Berlin, Germany
[7] Hop Cochin, Rhumatol B, 27 Rue Fbg St Jacques, Paris, France
[8] Univ Glasgow, Inst Infect Immun & Inflammat, Coll Med Vet & Life Sci, Glasgow, Lanark, Scotland
[9] Univ Nova Lisboa, NOVA Med Sch, Lisbon, Portugal
[10] Leiden Univ, Dept Rheumatol, Med Ctr, Leiden, Netherlands
[11] Vrije Univ Amsterdam, Dept Rheumatol, Med Ctr, Amsterdam, Netherlands
[12] Univ Amsterdam, EULAR Patient Res Partner Dept Med Humanities, Med Ctr, Amsterdam, Netherlands
[13] Univ Med Ctr, Dept Med 3, Div Rheumatol, Dresden, Germany
[14] Fac Med Carl Gustav Carus, Dresden, Germany
[15] Karolinska Univ Hosp, Dept Rheumatol, Stockholm, Sweden
[16] Hosp Univ La Paz, Serv Reumatol, Inst Invest IdiPAZ, Madrid, Spain
[17] Vrije Univ Amsterdam, Dept Epidemiol & Biostat, Amsterdam, Netherlands
[18] Vrije Univ Amsterdam, Amsterdam Rheumatol & Immunol Ctr, Amsterdam, Netherlands
[19] Sint Maartensklin, Dept Rheumatol, Nijmegen, Netherlands
[20] Univ Manchester, Div Musculoskeletal & Dermatol Sci, Manchester, Lancs, England
[21] Manchester Univ NHS Fdn Trust, NIHR Manchester Biomed Res Ctr, Manchester, Lancs, England
[22] Univ Milan, Dept Clin Sci & Community Hlth, Pavia, Italy
[23] IRCCS S Matteo Fdn, Pavia, Italy
[24] Ctr Invest Clin Morelia SC, Morelia, Michoacan, Mexico
[25] Katholieke Univ Leuven, Dept Dev & Regenerat, Skeletal Biol & Engn Res Ctr, Leuven, Belgium
[26] Univ Hosp Leuven, Rheumatol, Leuven, Belgium
[27] Univ Med & Pharm, Ctr Rheumat Dis, Bucharest, Romania
[28] Univ Genoa, Res Lab, Dept Internal Med, Genoa, Italy
[29] Univ Genoa, Div Clin Rheumatol, Dept Internal Med, Genoa, Italy
[30] Univ Hosp Southampton, Musculoskeletal Res Unit, NIHR Clin Res Facil, Southampton, Hants, England
[31] Univ Maastricht, Dept Patient & Care, Maastricht, Netherlands
[32] Univ Maastricht, Dept Rheumatol, Maastricht, Netherlands
[33] Univ Leeds, Leeds Teaching Hosp NHS Trust, NIHR Leeds Musculoskeletal Biomed Res Unit, Leeds, W Yorkshire, England
[34] Univ Leeds, Leeds Inst Rheumat & Musculoskeletal Med, Leeds, W Yorkshire, England
[35] Univ Hosp Geneva, Div Rheumatol, Geneva, Switzerland
[36] Sorbonne Univ, INSERM, Inst Pierre Louis Epidemiol & Sante Publ, Paris, France
[37] Hop La Pitie Salpetriere, AP HP, Rheumatol Dept, Paris, France
[38] Strasbourg Univ Hosp, Strasbourg, France
[39] Univ Strasbourg, CNRS, Inst Biol Mol & Cellulaire, Immunopathol & Chim Therapeut, Strasbourg, France
[40] Rigshospitalet, Copenhagen Ctr Arthrit Res, Ctr Rheumatol & Spine Dis, Copenhagen, Denmark
[41] Univ Copenhagen, Fac Hlth & Med Sci, Dept Clin Med, Copenhagen, Denmark
[42] European League Rheumatism, Zurich, Switzerland
[43] Cyprus League Rheumatism, Nikosia, Cyprus
[44] Beijing Univ, Dept Rheumatol & Immunol, Peoples Hosp, Beijing, Peoples R China
[45] Univ Paris Saclay, Univ Paris Sud, AP HP, Le Kremlin Bicetre, France
[46] Justus Liebig Univ Giessen, Dept Rheumatol & Clin Immunol, Campus Kerckhoff, Bad Nauheim, Germany
[47] Org Med Invest, Buenos Aires, DF, Argentina
[48] Ctr Hosp & Univ Coimbra Praceta Mota Pinto, Serv Reumatol, Coimbra, Portugal
[49] Coimbra Inst Clin & Biomed Res iCRB, Fac Med Coimbra, Coimbra, Portugal
[50] Semmelweis Univ, Natl Inst Rheumatol & Physiol, Budapest, Hungary