@article{article, title  = {{DELTA² guidance on choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial}},

 url = {{http://eprints.whiterose.ac.uk/139500/ }},

 year = {{2018}},

 month = {{11}},

 author = {{Cook JA and Julious SA and Sones W and Hampson LV and Hewitt C and Berlin JA and Ashby D and Emsley R and Fergusson DA and Walters SJ and Wilson ECF et al}},

 doi = {{10.1136/bmj.k3750}},

 volume = {{363}},

 journal = {{BMJ (Online)}},

 note = {{Accessed on 2024/12/22}}}