[1] OHSU, Portland, OR USA
[2] Endokrinologikum, Berlin, Germany
[3] Amsterdam Rheumatol Ctr, Amsterdam, Netherlands
[4] Univ Leeds, Leeds, W Yorkshire, England
[5] NIHR Leeds Musculoskeletal Biomed Res Unit, Leeds, W Yorkshire, England
[6] Univ Hosp Charite, Berlin, Germany
[7] Leiden Univ, Med Ctr, Leiden, Netherlands
[8] UCB Pharma, Slough, Berks, England
[9] UCB Pharma, Monheim, Germany
[10] Oregon Hlth & Sci Univ, Portland, OR 97201 USA