@article{article, title = {{Choosing the target difference ('effect size') for a randomised controlled trial - DELTA² guidance protocol}}, url = {{http://eprints.whiterose.ac.uk/118242/ }}, year = {{2017}}, month = {{6}}, author = {{Cook JA and Julious SA and Sones W and Rothwell JC and Ramsay CR and Hampson LV and Emsley R and Walters SJ and Hewitt C and Bland M and Fergusson DA et al}}, doi = {{10.1186/s13063-017-1969-5}}, volume = {{18}}, journal = {{Trials}}, note = {{Accessed on 2025/07/04}}}