[1] Univ Leeds, Leeds Teaching Hosp NHS Trust, NIHR Leeds Biomed Res Ctr, Leeds, W Yorkshire, England
[2] Univ Leeds, LIRMM, Leeds, W Yorkshire, England
[3] Univ Hosp Bellvitge, Rheumatol Serv, Barcelona, Spain
[4] Eli Lilly & Co, Indianapolis, IN 46285 USA
[5] Med Univ Vienna, Div Rheumatol, Vienna, Austria
[6] Univ Copenhagen, Dept Clin Med, Copenhagen, Denmark