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Comparisons within randomised groups can be very misleading.

作者信息

Bland J Martin, Altman Douglas G

机构信息

Department of Health Sciences, University of York, York YO10 5DD.

出版信息

BMJ. 2011 May 6;342:d561. doi: 10.1136/bmj.d561.

DOI:10.1136/bmj.d561
PMID:21551184
Abstract
摘要

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