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BMJ. 2011 Oct 18;343:d5928. doi: 10.1136/bmj.d5928.

The Cochrane Collaboration's tool for assessing risk of bias in randomised trials.

Author information

1
MRC Biostatistics Unit, Institute of Public Health, Cambridge CB2 0SR, UK. julian.higgins@mrc-bsu.cam.ac.uk
PMID:
22008217
PMCID:
PMC3196245
[Indexed for MEDLINE]
Free PMC Article

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