Issues in data monitoring and interim analysis of trials

A Grant, D Altman, A Babiker, M Campbell, F Clemens, J Darbyshire, D Elbourne, S McLeer, M Parmar, S Pocock, D Spiegelhalter, M Sydes (+2 others)
2005 Health Technology Assessment  
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doi:10.3310/hta9070 pmid:15763038 fatcat:qrj5iho3s5czfc6xpqgkd3waey