Goffe, L., Hillier-Brown, F., Hildred, N., Worsnop, M., Adams, J., Araujo-Soares, V., …Adamson, A. J. (2019). Feasibility of working with a wholesale supplier to co-design and test acceptability of an intervention to promote smaller portions: an uncontrolled before-and-after study in British Fish & Chip shops. BMJ Open, 9(2), Article e023441. https://doi.org/10.1136/bmjopen-2018-023441