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Informing efficient randomised controlled trials: exploration of challenges in developing progression criteria for internal pilot studies.
Avery KN, Williamson PR, Gamble C, O'Connell Francischetto E, Metcalfe C, Davidson P, Williams H, Blazeby JM; members of the Internal Pilot Trials Workshop supported by the Hubs for Trials Methodology Research. Avery KN, et al. Among authors: o connell francischetto e. BMJ Open. 2017 Feb 17;7(2):e013537. doi: 10.1136/bmjopen-2016-013537. BMJ Open. 2017. PMID: 28213598 Free PMC article. Review.