Understanding controlled trials. Randomisation methods: concealment.
作者信息
Torgerson D J, Roberts C
机构信息
National Primary Care Research and Development Centre, Centre for Health Economics, University of York, York YO1 5DD.
出版信息
BMJ. 1999 Aug 7;319(7206):375-6. doi: 10.1136/bmj.319.7206.375.
Abstract
摘要
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Empirical evidence of bias. Dimensions of methodological quality associated with estimates of treatment effects in controlled trials.偏倚的实证证据。与对照试验中治疗效果估计相关的方法学质量维度。
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Subverting randomization in controlled trials.在对照试验中破坏随机化
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