Krishnan, S M, Gc, V S, Sandhu, H K, Underwood, M, Eldabe, S, Manca, A & Urrutia, C P I 2020, ' Protocol for an economic analysis of the randomised controlled trial of Improving the Well-being of people with Opioid Treated CHronic pain : I-WOTCH Study ', BMJ Open, vol. 10, no. 11, e037243 . https://doi.org/10.1136/bmjopen-2020-037243 BMJ Open BMJ Open, Vol 10, Iss 11 (2020)