Bishop, Annette*; Foster, Nadine E.; Thomas, Elaine; Hay, Elaine M.
Primary Care Musculoskeletal Research Centre, Primary Care Sciences, Keele University, Staffordshire ST5 5BG, UK
*Corresponding author. Tel.: +44 1782 583900; fax: +44 1782 583911.
E-mail: [email protected]
Submitted May 9, 2007; received in revised form November 14, 2007; accepted November 16, 2007.