Subgroup analyses in randomized trials: risks of subgroup- specific analyses; power and sample size for the interaction testBrookes, S. T., Whitely, E., Egger, M., Smith, G. D., Mulheran, P. A. and Peters, T. J. (2004) Subgroup analyses in randomized trials: risks of subgroup- specific analyses; power and sample size for the interaction test. Journal of Clinical Epidemiology, 57 (3). pp. 229-236. Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing.
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