[1] Med Univ Vienna, Dept Med 3, Div Rheumatol, Vienna, Austria
[2] Amsterdam Univ Med Ctr, Div Clin Immunol & Rheumatol, Heerlen, Netherlands
[3] Zuyderland Med Ctr Heerlen, Heerlen, Netherlands
[4] Leiden Univ, Dept Rheumatol, Med Ctr, Leiden, Netherlands
[5] CHRC Campus Nova Med Sch, Lisbon, Portugal
[6] Univ Milan, Milan & Dept Rheumatol, ASST PINI CTO, Milan, Italy
[7] Univ Hosp Southampton, MSK Res Unit, NIHR Southampton Clin Res Facil, Southampton, England
[8] Univ Manchester, Manchester Univ NHS Trust, NIHR Manchester Biomed Res Ctr, Manchester, England
[9] Univ Manchester, Manchester Univ NHS Trust, Ctr Epidemiol Versus Arthrit, Manchester Acad Hlth Sci Ctr, Manchester, England
[10] Western Univ, Dept Rheumatol & Clin Immunol, Belgrade, ON, Canada
[11] EULAR Patient Res Partner Network, Ctr Expt Med & Rheumatol, Zurich, Switzerland
[12] Med Univ Vienna, Ctr Med Stat Informat & Intelligent Syst, Sect Outcomes Res, Vienna, Austria
[13] Keio Univ, Dept Internal Med 4, Div Rheumatol & Clin Immunol, Tokyo, Japan
[14] Saitama Med Univ, Fac Med, Dept Rheumatol, Univ Hosp St Ivan Rilski, Saitama, Japan
[15] Univ Hosp Leuven, Dept Rheumatol, Leuven, Belgium
[16] Oregon Hlth & Sci Univ, Portland, OR USA
[17] Univ Autonoma Madrid, Hosp Univ La Paz, Serv Reumatol, Madrid, Spain
[18] Columbia Univ, New York Presbyterian Hosp, Irving Med Ctr, New York, NY USA
[19] Manchester Univ NHS Fdn Trust, Fac Biol Med & Hlth, Ctr Musculoskeletal Res, Div Musculoskeletal & Dermatol Sci, Manchester, England
[20] Manchester Univ NHS Fdn Trust, NIHR Manchester Biomed Res Ctr, Manchester, England
[21] Charite, Dept Rheumatol & Clin Immunol, Berlin, Germany
[22] Ctr Invest Clin Morelia, Morelia, Mexico
[23] Karolinska Univ Hosp, Karolinska Inst, Dept Med Solna, Rheumatol Div, Stockholm, Sweden
[24] Univ Med & Pharm, Ctr Rheumat Dis, Bucharest, Romania
[25] Univ Genoa, San Martino Polyclin Hosp, Dept Internal Med & Med Specialties, Div Rheumatol DiMI,IRCCS, Genoa, Italy
[26] Univ Genova IRCCS, San Martino Polyclin Hosp, Lab Expt Rheumatol, Genoa, Italy
[27] Sint Maartensklin & Radboudumc, Nijmegen, Netherlands
[28] Univ Florence, Dept Expt & Clin Med, Florence, Italy
[29] Univ Geneva, Geneva Univ Hosp, Dept Med, Div Rheumatol, Geneva, Switzerland
[30] Univ Geneva, Fac Med, Geneva, Switzerland
[31] Univ Lisbon, Ctr Hosp Univ Lisboa Norte, Hosp Santa Maria, Dept Rheumatol, Lisbon, Portugal
[32] Univ Lisbon, Fac Med, Inst Med Mol Joao Lobo Antunes, Lisbon, Portugal
[33] Strasbourg Univ Hosp, Strasbourg, France
[34] Diakonhjemmet Hosp, Ctr treatment Rheumat & Musculoskeletal Dis REMED, Oslo, Norway
[35] Univ Oslo, Oslo, Norway
[36] Univ Torino, Acad Rheumatol Ctr, Dipartimento Sci Clin & Biol, Cattedra Reumatol,AO Mauriziano Torino, Turin, Italy
[37] Peking Univ, Peoples Hosp, Dept Rheumatol & Immunol, Beijing, Peoples R China
[38] Univ Glasgow, Coll Med Vet & Life Sci, Glasgow, Scotland
[39] Org Med Invest, Buenos Aires, Argentina
[40] Griffith Univ, Sch Med, Brisbane, Qld, Australia
[41] Semmelweis Univ, Natl Inst Musculoskeletal Disorders, Med Sch, Budapest, Hungary