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Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement

  • David Moher mail,

    dmoher@ohri.ca

    Affiliations: Ottawa Methods Centre, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada, Department of Epidemiology and Community Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada

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  • Alessandro Liberati,

    Affiliations: Università di Modena e Reggio Emilia, Modena, Italy, Centro Cochrane Italiano, Istituto Ricerche Farmacologiche Mario Negri, Milan, Italy

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  • Jennifer Tetzlaff,

    Affiliation: Ottawa Methods Centre, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada

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  • Douglas G. Altman,

    Affiliation: Centre for Statistics in Medicine, University of Oxford, Oxford, United Kingdom

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  • The PRISMA Group

    Membership of the PRISMA Group is provided in the Acknowledgments.

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  • Published: July 21, 2009
  • DOI: 10.1371/journal.pmed.1000097

About the Authors

David Moher, Jennifer Tetzlaff
Ottawa Methods Centre, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
David Moher
Department of Epidemiology and Community Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
Alessandro Liberati
Università di Modena e Reggio Emilia, Modena, Italy
Alessandro Liberati
Centro Cochrane Italiano, Istituto Ricerche Farmacologiche Mario Negri, Milan, Italy
Douglas G. Altman
Centre for Statistics in Medicine, University of Oxford, Oxford, United Kingdom

Corresponding Author

Email: dmoher@ohri.ca

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

ICMJE criteria for authorship read and met: DM AL JT DGA. Wrote the first draft of the paper: DM AL DGA. Contributed to the writing of the paper: DM AL JT DGA. Participated in regular conference calls, identified the participants, secured funds, planned the meeting, participated in the meeting, and drafted the manuscript: DM AL DGA. Participated in identifying the evidence base for PRISMA, refining the checklist, and drafting the manuscript: JT. Agree with the recommendations: DM AL JT DGA.