[1] Brigham & Womens Hosp, Rheumatol Immunol & Allergy, Boston, MA 02115 USA
[2] Johns Hopkins Univ, Baltimore, MD USA
[3] Charite, Dept Rheumatol & Clin Immunol, D-13353 Berlin, Germany
[4] Hosp Special Surg, Rheumatol, New York, NY 10021 USA
[5] Univ Calif Los Angeles, David Geffen Sch Med, Med, Los Angeles, CA 90095 USA
[6] Univ Paris 11, Hop Univ Paris Sud, AP HP, Paris, France
[7] State Univ Limburg Hosp, NL-6201 BX Maastricht, Netherlands
[8] UCB Pharma, Raleigh, NC USA
[9] UCB Pharma, Global Med Affairs, Brussels, Belgium
[10] UCB Pharma, Brussels, Belgium
[11] UCB Pharma, Raleigh, NC USA
[12] Univ Leeds, Leeds Inst Rheumat & Musculoskeletal Med, Leeds, W Yorkshire, England