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BMJ. 2010 Mar 30;340:c117. doi: 10.1136/bmj.c117.

Is a subgroup effect believable? Updating criteria to evaluate the credibility of subgroup analyses.

Author information

1
Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada.
PMID:
20354011
DOI:
10.1136/bmj.c117
[Indexed for MEDLINE]

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