Tapping, P, Rashid, A, Thomson, W, Ghio, D, Cordingley, L, Calam, R, Jimmieson, P, Chieng, A, "OP0157-HPR “This feeling!” : can a new Ipad app help children with juvenile idiopathic arthritis communicate their pain experiences? Feasibility, usability and acceptability", Annals of the Rheumatic Diseases (ARD), 2015