1. J.E. Jeffrey, BA(Hons), BSc(Hons), PGCE, MSc, MCSP, National Health Service, Bro Ddyfi Hospital, Machynlleth, Powys, Wales, and Dyfi Physio, 1 Trem y Leri, Aberdyfi, Gwynedd, Wales LL35 0PW.
2. N.E. Foster, DPhil, BSc(Hons), MCSP, PGCE, Primary Care Sciences, Arthritis Research UK Primary Care Centre, Keele University, Keele, Staffordshire, United Kingdom.