BMC Medical Research Methodology

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Recommendations by Cochrane Review Groups for assessment of the risk of bias in studies

Andreas Lundh and Peter C Gøtzsche*

  • * Corresponding author: Peter C Gøtzsche pcg@cochrane.dk

  • † Equal contributors

BMC Medical Research Methodology 2008, 8:22 doi:10.1186/1471-2288-8-22

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