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BMJ. 1999 Dec 4;319(7223):1492-5.

Calculating the number needed to treat for trials where the outcome is time to an event.

Author information

  • 1Imperial Cancer Research Group Medical Statistics Group, Centre for Statistics in Medicine, Institute of Health Sciences, Headington, Oxford OX3 7LF. d.altman@icrf.icnet.uk
PMID:
10582940
[PubMed - indexed for MEDLINE]
PMCID:
PMC1117211
Free PMC Article

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