References

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• 2007The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for Reporting Observational Studies22,917 cited
• 2007The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for Reporting Observational Studies17,756 cited
• 2001The CONSORT statement: revised recommendations for improving the quality of reports of parallel-group randomised trials5,372 cited
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• 2009Publication bias in clinical trials due to statistical significance or direction of trial results897 cited
• 2006