OP21 Effectiveness and cost-utility of a group self-management support intervention (COPERS) for people with chronic musculoskeletal pain: a randomised controlled trial
S Eldridge, A Spenser, T Pincus, A Rahman, SA Bremner, MR Underwood, SJC Taylor, D Carnes, K Homer, BC Kahan, N Hounsome, K Diaz-Ordaz
J Epidemiol Community Health Sep 2014, 68 (Suppl 1) A13-A14; DOI: 10.1136/jech-2014-204726.24