@article{article, title  = {{Informing efficient randomised controlled trials: exploration of challenges in developing progression criteria for internal pilot studies.}},

 publisher = {{BMJ Publishing Group}},

 url = {{https://eprints.whiterose.ac.uk/id/eprint/113084 https://doi.org/10.1136/bmjopen-2016-013537 }},

 year = {{2017}},

 month = {{2}},

 author = {{Avery KNL and Williamson PR and Gamble C and Francischetto EOC and Metcalfe C and Davidson P and Williams H and Blazeby JM and Blencowe N and Bugge C and Campbell M et al}},

 doi = {{10.1136/bmjopen-2016-013537}},

 volume = {{7}},

 journal = {{BMJ Open}},

 note = {{Accessed on 2025/11/28}}}