Guidance for using pilot studies to inform the design of intervention trials with continuous outcomes by Bell ML, Whitehead AL, Julious SA

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Increases in asthma hospital admissions associated with the end of the summer vacation for school-age children with asthma in two cities from England and Scotland. by Julious, SA, Osman, L, Jiwa, M

Appropriate design and reporting of superiority, equivalence and non-inferiority clinical trials incorporating a benefit risk assessment: the BRAINS study including expert workshop by Totton, N, Julious, SA, Coates, E, Hughes, DA, Cook, JA, Biggs, K, Hewitt, C, Day, S, Cook, A

Automated telephone communication systems for preventive healthcare and management of long-term conditions by Posadzki, P, Mastellos, N, Ryan, R, Gunn, LH, Felix, LM, Pappas, Y, Gagnon, MP, Julious, SA, Xiang, L, Oldenburg, B, Car, J

Choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial - the development of the DELTA2 guidance by Sones, WR, Julious, SA, Rothwell, J, Ramsay, C, Hampson, L, Emsley, R, Walters, S, Hewitt, C, Bland, M, Fergusson, D, Berlin, J, Altman, D, Vale, L, Cook, JA

Choosing the target difference ('effect size') for a randomised controlled trial - DELTA(2) guidance protocol. by Cook, JA, Julious, SA, Sones, W, Rothwell, JC, Ramsay, CR, Hampson, LV, Emsley, R, Walters, SJ, Hewitt, C, Bland, M, Fergusson, DA, Berlin, JA, Altman, D, Vale, LD

Development process of a consensus-driven CONSORT extension for randomised trials using an adaptive design by Dimairo, M, Coates, E, Pallmann, P, Todd, S, Julious, SA, Jaki, T, Wason, J, Mander, AP, Weir, CJ, Koenig, F, Walton, MK, Biggs, K, Nicholl, J, Hamasaki, T, Proschan, MA, Scott, JA, Ando, Y, Hind, D, Altman, DG

Practical help for specifying the target difference in sample size calculations for RCTs: the DELTA2 five-stage study, including a workshop by Cook, JA, Julious, SA, Sones, W, Hampson, LV, Hewitt, C, Berlin, JA, Ashby, D, Emsley, R, Fergusson, DA, Walters, SJ, Wilson, ECF, Maclennan, G, Stallard, N, Rothwell, JC, Bland, M, Brown, L, Ramsay, CR, Cook, A, Armstrong, D, Altman, D, Vale, LD

DELTA2 guidance on choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial by Cook, J, Julious, SA, Sones, WR, Hampson, LV, Hewitt, C, Berlin, JA, Ashby, D, Emsley, R, Fergusson, DA, Walters, SJ, Wilson, ECF, Maclennan, G, Stallard, N, Rothwell, JC, Bland, M, Brown, L, Ramsay, CR, Cook, A, Armstrong, D, Altman, D, Vale, LD