*Arthritis Research UK Primary Care Centre, Primary Care Sciences, Keele University, Keele, Staffordshire, United Kingdom
†Musculoskeletal Division, The George Institute for Global Health, University of Sydney, Australia and EMGO+ Institute, VU University Medical Centre, Amsterdam, the Netherlands; and
‡Spine Centre of Southern Denmark, Hospital Lillibælt, Institute of Regional Health Services Research, University of Southern Denmark, Odense, Denmark.
Address correspondence and reprint requests to Gemma Mansell, MSc, Arthritis Research UK Primary Care Centre, Primary Care Sciences, Keele University, Keele, Staffordshire, United Kingdom, ST5 5BG; E-mail: email@example.com
Acknowledgment date: July 3, 2013. Revision date: September 16, 2013. Acceptance date: November 15, 2013.
The manuscript submitted does not contain information about medical device(s)/drug(s).
The National Institute for Health Research (NIHR) under its Programme Grants for Applied Research Programme (grant reference no. RP-PG-0707-10131) funds were received in support of this work.
Relevant financial activities outside the submitted work: employment, grants, royalties.