@article{article, title = {{Development of theory-based health messages: three-phase programme of formative research}}, publisher = {{Oxford University Press}}, url = {{https://eprints.whiterose.ac.uk/id/eprint/91490 http://dx.doi.org/10.1093/heapro/dau005 }}, year = {{2014}}, month = {{2}}, author = {{Epton T and Norman P and Harris P and Webb T and Snowsill FA and Sheeran P}}, doi = {{10.1093/heapro/dau005}}, volume = {{30}}, journal = {{Health Promotion International}}, issue = {{3}}, pages = {{756-768}}, note = {{Accessed on 2025/11/25}}}