Pre-publication history
Meta-analysis, Simpson's paradox, and the number needed to treat
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* Corresponding author: Douglas G Altman doug.altman@cancer.org.uk
BMC Medical Research Methodology 2002, 2:3 doi:10.1186/1471-2288-2-3
Pre-publication versions of this article and reviewers' reports
| Published | 25 Jan 2002 | ||
| Editor's comment | Editor's comment | 25 Jan 2002 |