[1] Univ Washington, Swedish Med Ctr, Seattle, WA 98195 USA
[2] Univ Washington, Prov St Joseph Hlth, Seattle, WA 98195 USA
[3] Charite Univ Med Berlin, Dept Gastroenterol Infect Dis & Rheumatol, Berlin, Germany
[4] Johns Hopkins Univ, Sch Med, Div Rheumatol, Baltimore, MD USA
[5] Northern Care Alliance NHS Fdn Trust, Dermatol Ctr, Manchester, Lancs, England
[6] Univ Manchester, NHS Fdn Trust, NIHR Manchester Biomed Res Ctr, Manchester Acad Hlth Sci Ctr, Manchester, Lancs, England
[7] UCB Pharma, Brussels, Belgium
[8] UCB Pharma, Slough, Berks, England
[9] UCB Pharma, Monheim, Germany
[10] UCB Pharma, Morrisville, NY USA
[11] Amsterdam & Zuyderland MC, Amsterdam Rheumatol & Clin Immunol Ctr, Heerlen, Netherlands
[12] Univ Calif San Francisco, San Francisco, CA 94143 USA