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Recruitment and retention of participants in randomised controlled trials: a review of trials funded and published by the United Kingdom Health Technology Assessment Programme.
Walters SJ, Bonacho Dos Anjos Henriques-Cadby I, Bortolami O, Flight L, Hind D, Jacques RM, Knox C, Nadin B, Rothwell J, Surtees M, Julious SA. Walters SJ, et al. Among authors: bonacho dos anjos henriques cadby i. BMJ Open. 2017 Mar 20;7(3):e015276. doi: 10.1136/bmjopen-2016-015276. BMJ Open. 2017. PMID: 28320800 Free PMC article. Review.