Luke D Vale

DELTA2 guidance on choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial

David Armstrong, Lisa V Hampson, Nigel Stallard, 2018, British Medical Journal.

Randomised trial of glutamine, selenium, or both, to supplement parenteral nutrition for critically ill patients

Marion K Campbell, Alison Avenell, Jonathan A Cook, 2011, BMJ : British Medical Journal.

Use of methods for specifying the target difference in randomised controlled trial sample size calculations: Two surveys of trialists’ practice

Andrew H Briggs, Craig R Ramsay, Jonathan A Cook, 2014, Clinical trials.

Economic evaluation of screening for open-angle glaucoma

Luke D Vale, L. Vale, J. Burr, 2008, International Journal of Technology Assessment in Health Care.

Specifying the target difference in the primary outcome for a randomised controlled trial: guidance for researchers

Douglas G Altman, Andrew H Briggs, Craig R Ramsay, 2015, Trials.