[1] Univ Cambridge, Sch Clin Med, Dept Publ Hlth & Primary Care, Cambridge, England
[2] Univ Birmingham, Coll Med & Dent Sci, Inst Inflammat & Ageing, Rheumatol Res Grp, Birmingham, W Midlands, England
[3] Univ Cambridge, Inst Publ Hlth, Patient & Publ Involvement Lupus Res Grp, Cambridge, England
[4] Univ Coll London Hosp, Rheumatol Dept, London, England
[5] Guys & St Thomas NHS Fdn Trust, Louise Coote Lupus Unit, London, England