Cochrane’s editorial and publishing policies can now be found on the Cochrane Library Editorial policies page. Cochrane authors and editorial teams should refer to the Cochrane Library as the primary source of information on this policy. For editorial guidance on policies the EPPR remains the primary location.

Authorship should be based on substantial contributions to all of the following four steps, as described by the International Committee of Medical Journal Editors (ICMJE) in the Recommendations for the Conduct, Reporting, Editing, and Publication of Scholarly work in Medical Journals. Authors must sign a licence for publication form that affirms all of the following:

  • I/we have made substantial contributions to the conception or design of the work; or the acquisition, analysis, or interpretation of data for the work.
  • I/we have drafted the work or revised it critically for important intellectual content.
  • I/we approve the final version to be published.
  • I/we agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

Listing contributions

The specific contributions of each author are listed under the section ‘Contributions of authors’. The list of authors can be the name of an individual, several individuals, a collaborative group (for example, ‘Advanced Bladder Cancer Overview Collaboration’), or a combination of one or more authors and a collaborative group; see Authors using a group name. Ideally, the order of authors should relate to their relative contributions to the review, with the person who contributed most should be listed first. Authors are encouraged to discuss the order of byline authors early in the preparation of the Cochrane Review or protocol for the Cochrane Review.


When deciding who should appear in the byline of a Cochrane Review, it is important to distinguish individuals who meet the criteria for authorship and those who have helped in other ways and who should be noted in the Acknowledgements section. Written permission must be granted to name an individual in the 'Acknowledgements' section. Also refer to 'Non-Author Contributors' as set out by the ICMJE.

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