[1] Univ Manchester, Ctr Epidemiol Versus Arthrit, Manchester, Lancs, England
[2] Univ Birmingham, Inst Inflammat & Ageing, Coll Med & Dent Sci, Rheumatol Res Grp, Birmingham, W Midlands, England
[3] Sandwell & West Birmingham NHS Fdn Trust, Dept Rheumatol, Birmingham, W Midlands, England
[4] Salford Royal NHS Fdn Trust, Dept Rheumatol, Manchester, Lancs, England
[5] Univ Manchester, NIHR Biomed Res Ctr Manchester, Manchester, Lancs, England
[6] Manchester Univ NHS FT, Dept Rheumatol, Manchester, Lancs, England
[7] Pennine Acute Hosp NHS Trust, Dept Rheumatol, Manchester, Lancs, England
[8] Manchester Univ NHS FT, Kellgren Ctr Rheumatol, Manchester, Lancs, England