Cook, Jonathan A ;
Julious, Steven A ;
Sones, William...
Cook , J A , Julious , S A , Sones , W , Hampson , L V , Hewitt , C , Berlin , J A , Ashby , D , Emsley , R , Fergusson , D A , Walters , S J , Wilson , E C F , Maclennan , G , Stallard , N , Rothwell , J C , Bland , M , Brown , L , Ramsay , C R , Cook , A , Armstrong , D , Altman , D & Vale , L D 2018 , ' DELTA 2 guidance on choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial ' , Trials , vol. 19 , no. 1 , pp. 606 . https://doi.org/10.1186/s13063-018-2884-0.
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2018