[1] Sandwell & West Birmingham Hosp NHS Trust, Dept Rheumatol, Birmingham, England
[2] Univ Birmingham, Inst Inflammat & Ageing, Coll Med & Dent Sci, Rheumatol Res Grp, Birmingham, England
[3] Univ Birmingham, Inst Appl Hlth Res, Birmingham, England
[4] Keele Univ, Sch Med, Primary Care Ctr Versus Arthrit, Keele, England
[5] Univ Hosp Birmingham NHS Fdn Trust, Birmingham, England
[6] Univ Birmingham, NIHR Birmingham Biomed Res Ctr, Birmingham, England
[7] Univ Birmingham, MRC Versus Arthrit Ctr Musculoskeletal Ageing Res, Birmingham, England
[8] Univ Birmingham, Res Inflammatory Arthrit Ctr Versus Arthrit, Birmingham, England