title: Doing clinical trials large enough to achieve adequate reductions in uncertainties about treatment effects.
authors: Medical Statistics Group, ScHARR, University of Sheffield, Regent Court, Sheffield, UK. m.j.campbell@sheffield.ac.uk
authors: Michael J
authors: MJ
authors: Campbell
mesh_terms: D002986:Clinical Trials as Topic / Q000592:standards*; D006801:Humans; D012107:Research Design / Q000592:standards*; D016896:Treatment Outcome; D035501:Uncertainty
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