1. Primary Care Centre Versus Arthritis, School of Medicine, Keele University Staffordshire ST5 5BG United Kingdom
2. Haywood Academic Rheumatology Centre, Midlands Partnership NHS Foundation Trust, Haywood Hospital, Burslem Staffordshire ST6 7AG United Kingdom
3. School of Allied Health, Human Services and Sport, College of Science, Health and Engineering, La Trobe University Melbourne Victoria 3086 Australia