TY - JOUR T1 - DELTA2 guidance on choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial JO - Trials UR - https://eprints.whiterose.ac.uk/id/eprint/138617 UR - https://doi.org/10.1186/s13063-018-2884-0 PY - 2018/11/05 AU - Cook JA AU - Julious SA AU - Sones W AU - Hampson LV AU - Hewitt C AU - Berlin JA AU - Ashby D AU - Emsley R AU - Fergusson DA AU - Walters SJ AU - Wilson ECF et al ED - DO - DOI: 10.1186/s13063-018-2884-0 PB - BMC VL - 19 Y2 - 2025/10/31 ER -