1. J. Waterfield, EdD, MSc, School of Health and Rehabilitation and Institute for Primary Care and Health Sciences, Keele University, Keele, Staffordshire ST5 5BG, United Kingdom.
2. B. Bartlam, PhD, MA, Arthritis Research UK Primary Care Centre, Institute for Primary Care and Health Sciences, Keele University.
3. A. Bishop, PhD, MSc, Arthritis Research UK Primary Care Centre, Institute for Primary Care and Health Sciences, Keele University.
4. M.A. Holden, PhD, BSc(Hons), Arthritis Research UK Primary Care Centre, Institute for Primary Care and Health Sciences, Keele University.
5. P. Barlas, DPhil, BSc, School of Health and Rehabilitation and Institute for Primary Care and Health Sciences, Keele University.
6. N.E. Foster, DPhil, BSc, Arthritis Research UK Primary Care Centre, Institute for Primary Care and Health Sciences, Keele University.