[1] Univ Hosp Bonn, Dept Oncol Rheumatol & Clin Immunol, Clin Internal Med 3, Bonn, Germany
[2] Univ Klinikum Bonn, Bonn, Germany
[3] Univ Hosp Bonn, Dept Gynecol & Obstet, Bonn, Germany
[4] Asklepios Clin, Tegernheim, Germany
[5] Med Univ Innsbruck, Dept Internal Med, Clin Div Internal Med II, Innsbruck, Austria
[6] Fdn IRCCS Policlin San Matteo, Div Rheumatol, Pavia, Italy
[7] Univ Pavia, Dept Internal Med & Therapeut, Pavia, Italy
[8] Univ Med Ctr Ljubljana, Dept Rheumatol, Ljubljana, Slovenia
[9] Med Univ Plovdiv, Clin Rheumatol, Plovdiv, Bulgaria
[10] Univ Turin, Rome, Italy
[11] Azienda USL IRCCS Reggio Emilia, Reggio Emilia, Italy
[12] Arcispedale Santa Maria Nuova, Rheumatol Unit, Reggio Emilia, Italy
[13] Hosp Univ Fdn Jimenez Diaz, Rheumatol Dept & Joint & Bone Res Unit, Madrid, Spain
[14] Hosp Univ La Paz, Madrid, Spain
[15] Inselspital Univ Hosp Bern, Rheumatol & Immunol, Bern, Switzerland
[16] Univ Basel Hosp, Clin Rheumatol, Basel, Switzerland
[17] Univ Basel Hosp, Dept Angiol, Basel, Switzerland
[18] Hosp Grp Twente, Rheumatol & Clin Immunol, Almelo, Netherlands
[19] Norfolk & Norwich Univ Hosp, Dept Rheumatol, Vasculitis Serv, Norwich, England
[20] NIHR Leeds Biomed Res Ctr, Leeds, England
[21] Univ Leeds, S Leeds Ins Rheumat & Musculoskeletal Med, Leeds, England
[22] Akershus Univ Hosp, Lorenskog, Norway
[23] Southwest Jutland Hosp Esbjerg, Dept Rheumatol, Esbjerg, Denmark
[24] Aarhus Univ Hosp, Dept Rheumatol, Aarhus, Denmark
[25] Reg Hosp Horsens, Dept Med, Horsens, Denmark
[26] Aarhus Univ Hosp, Dept Rheumatol, Aarhus, Denmark
[27] Aarhus Univ, Dept Clin Med, Aarhus, Denmark
[28] Copenhagen Univ Hosp Hvidovre, Hvidovre, Denmark
[29] Rigshosp, Ctr Rheumatol & Spine Dis, Glostrup, Denmark
[30] Pomeranian Med Univ, Geriatr & Clin Immunol, Dept Internal Med, Rheumatol, Szczecin, Poland
[31] Med Ctr Rheumatol Berlin Buch, Immanuel Krankenhaus Berlin, Berlin, Germany
[32] Med Ctr Rheumatol Berlin Buch, Rheumatol Immanuel Krankenhaus Berlin, Berlin, Germany
[33] Reumakliniek Lelystad, Loenga, Netherlands
[34] Azienda Sanitaria Alto Adige, Brunico, Italy