[1] Univ Tasmania, Menzies Inst Med Res, Hobart, Tas, Australia
[2] Monash Univ, Dept Epidemiol & Prevent Med, Melbourne, Vic, Australia
[3] Queen Elizabeth Hosp, Adelaide, SA, Australia
[4] Univ Adelaide, Adelaide, SA, Australia
[5] Univ Sydney, Kolling Inst, Inst Bone & Joint Res, Sydney, NSW, Australia
[6] Royal North Shore Hosp, Dept Rheumatol, Sydney, NSW, Australia
[7] Fiona Stanley Hosp, Sch Med & Pharmacol, Perth, WA, Australia