[1] Paris Cite Univ, Cochin Hosp, APHP, Dept Rheumatol, Paris, France
[2] Univ Michigan, Dept Med, Ann Arbor, MI USA
[3] Ghent Univ Hosp VIB, Dept Rheumatol & Internal Med, Ghent, Belgium
[4] Inflammat Res Ctr IRC, Unit Mol Immunol & Inflammat, Ghent, Belgium
[5] Dresden TU, Univ Med Ctr, Dept Med 3, Div Rheumatol, Dresden, Germany
[6] Dresden TU, Fac Med Carl Gustav Carus, Dresden, Germany
[7] Oslo Univ Hosp, Dept Rheumatol, Oslo, Norway
[8] Nippon Med Sch, Grad Sch Med, Dept Allergy & Rheumatol, Tokyo, Japan
[9] Univ Penn, Dept Med, Dept Biostat Epidemiol & Informat, Div Rheumatol, Philadelphia, PA USA
[10] Boehringer Ingelheim Pharm GmbH & Co KG, Biberach, Germany
[11] Boehringer Ingelheim Int GmbH, Ingelheim, Germany
[12] UCL, Ctr Rheumatol & Connect Tissue Dis, Div Med, London, England