[1] Natl & Kapodistrian Univ Athens, Laiko Hosp, Dept Propaedeut Internal Med 1, Athens, Greece
[2] Reade, Amsterdam Rheumatol & Immunol Ctr, Amsterdam, Netherlands
[3] Northwest Clin, Dept Internal Med, Alkmaar, Netherlands
[4] Univ Messina, Dept Internal Med, Rheumatol Unit, Messina, Italy
[5] EULAR Patient Res Partner, Brussels, Belgium
[6] Attikon Univ Hosp, Dept Internal Med 4, Athens, Greece
[7] Natl & Kapodistrian Univ Athens, Med Sch, Joint Acad Rheumatol Program, Athens, Greece
[8] Karolinska Inst, Dept Neurobiol Care Sci & Soc, Div Physiotherapy, Huddinge, Sweden
[9] Danderyd Hosp Corp, Dept Orthopaed, Stockholm, Sweden
[10] Univ Manchester, Ctr Musculoskeletal Res, Ctr Epidemiol Versus Arthrit, Manchester, Lancs, England
[11] Manchester Univ Hosp NHS Trust, Manchester Acad Hlth Sci Ctr, NIHR Manchester Biomed Res Ctr, Manchester, Lancs, England
[12] Hosp Univ Marques Valdecilla, Rheumatol Div, Santander, Spain
[13] Univ Cantabria, Santander, Spain
[14] Rigshosp, Copenhagen Lupus & Vasculitis Clin, Copenhagen, Denmark
[15] Univ Copenhagen, Fac Hlth Sci, Dept Clin Med, Copenhagen, Denmark
[16] Univ Debrecen, Dept Med, Intens Care Unit, Debrecen, Hungary
[17] EULAR Patient Res Partner, Rome, Italy
[18] Norfolk & Norwich Univ Hosp, Rheumatol Dept, Colney Lane, Norwich, Norfolk, England
[19] Univ Barcelona, Hosp Clin, ICMiD, Dept Autoimmune Dis, Barcelona, Spain
[20] Univ Glasgow, Inst Cardiovasc & Med Sci, Glasgow, Lanark, Scotland
[21] Danish Hosp Rheumat Dis, Sonderburg, Denmark
[22] Univ Torino, San Giovanni Bosco Hosp, CMID Nephrol, Turin, Italy
[23] Karolinska Inst, Rheumatol Unit, Dept Med, Stockholm, Sweden
[24] Karolinska Univ Hosp, Stockholm, Sweden
[25] Univ Debrecen, Fac Med, Dept Rheumatol, Debrecen, Hungary
[26] Tech Univ Dresden, Univ Clin Carl Gustav Carus, Dept Rheumatol, Dresden, Germany
[27] Univ Basel, Dept Rheumatol, Basel, Switzerland
[28] Locat VU Univ, Med Ctr, Amsterdam Univ, Dept Cardiol, Amsterdam, Netherlands
[29] Vrije Univ, Amsterdam UMC, Dept Rheumatol & Clin Immunol, Amsterdam, Netherlands
[30] NHS Grampian, Dept Publ Hlth, Aberdeen, Scotland
[31] NIAMSD, Intramural Res Program, NIH, Bethesda, MD 20892 USA
[32] Locat VU Univ, Med Ctr, Amsterdam Univ, Amsterdam, Netherlands