[1] Univ Leeds, Leeds, W Yorkshire, England
[2] Johns Hopkins Univ, Baltimore, MD USA
[3] Charite, Berlin, Germany
[4] Weill Cornell Coll, New York, NY USA
[5] Univ Calif Los Angeles, Los Angeles, CA USA
[6] Univ Paris Sud, Paris, France
[7] Leiden Univ, Med Ctr, Leiden, Netherlands
[8] Amsterdam Rheumatol & Immunol Ctr, Amsterdam, Netherlands
[9] UCB Pharma, Raleigh, NC USA
[10] UCB Pharma, Brussels, Belgium
[11] Brigham & Womens Hosp, 75 Francis St, Boston, MA 02115 USA