References

• 2009Preferred reporting items for systematic reviews and meta-analyses: the PRISMA Statement.44,857 cited
• 2009Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement37,549 cited
• 2009The PRISMA Statement for Reporting Systematic Reviews and Meta-Analyses of Studies That Evaluate Health Care Interventions: Explanation and Elaboration28,094 cited
• 2000Meta-analysis of Observational Studies in Epidemiology A Proposal for Reporting20,612 cited
• 2009Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement19,577 cited
• 2009The PRISMA Statement for Reporting Systematic Reviews and Meta-Analyses of Studies That Evaluate Health Care Interventions: Explanation and Elaboration10,345 cited
• 1976Primary, Secondary, and Meta-Analysis of Research4,889 cited
• 1999Improving the quality of reports of meta-analyses of randomised controlled trials: the QUOROM statement4,828 cited
• 1991Publication bias in clinical research3,110 cited
• 1999The Hazards of Scoring the Quality of Clinical Trials for Meta-analysis1,981 cited
• 1998meta-analysis bias in location and selection of studies1,370 cited
• 1995Assessing the quality of randomized controlled trials: An annotated bibliography of scales and checklists1,306 cited
• 1997Language bias in randomised controlled trials published in English and German1,029 cited