Correction to: Choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial

Sones, WilliamJulious, Steven ARothwell, Joanne CRamsay, Craig RHampson, Lisa VEmsley, RichardWalters, Stephen JHewitt, CatherineBland, MartinFergusson, Dean ABerlin, Jesse AAltman, DougVale, Luke DCook, Jonathan A2019-10-272019-10-272019-10-24Trials. 2019 Oct 24;20(1):602https://doi.org/10.1186/s13063-019-3809-2https://doi.org/10.20381/ruor-24020http://hdl.handle.net/10393/39777Following publication of the original article [1], we have been notified of a few mistakes:Correction to: Choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial – the development of the DELTA2 guidance2019-10-27enThe Author(s).