Recruitment to randomised trials: strategies for trial enrolment and participation study. The STEPS study by M Campbell, C Snowdon, D Francis, D Elbourne, A McDonald, R Knight, V Entwistle, J Garcia, I Roberts, A Grant, A Grant

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Issues in data monitoring and interim analysis of trials by A Grant, D Altman, A Babiker, M Campbell, F Clemens, J Darbyshire, D Elbourne, S McLeer, M Parmar, S Pocock, D Spiegelhalter, M Sydes, A Walker, S Wallace

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Contamination in trials of educational interventions by M Keogh-Brown, M Bachmann, L Shepstone, C Hewitt, A Howe, C Ramsay, F Song, J Miles, D Torgerson, S Miles, D Elbourne, I Harvey, M Campbell

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Randomised controlled trial and parallel economic evaluation of conventional ventilatory support versus extracorporeal membrane oxygenation for severe adult respiratory failure (CE... by GJ Peek, D Elbourne, M Mugford, R Tiruvoipati, A Wilson, E Allen, F Clemens, R Firmin, P Hardy, C Hibbert, N Jones, H Killer, M Thalanany, A Truesdale

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