About the Authors

The PLOS Medicine Editors

medicine_editors@plos.org

Competing Interests

The authors' individual competing interests are at http://www.plosmedicine.org/static/editorsInterests.action. PLOS is funded partly through manuscript publication charges, but the PLOS Medicine Editors are paid a fixed salary (their salary is not linked to the number of papers published in the journal). VB participated in the two-day consensus meeting where the PRISMA-E guidelines were developed and in the subsequent follow-up. She was not involved in the peer review or editorial decision making process on this paper.

Author Contributions

Wrote the first draft of the manuscript: VB. Contributed to the writing of the manuscript: VB EV JC PS MW LC. ICMJE criteria for authorship read and met: VB EV JC PS MW LC. Agree with manuscript results and conclusions: VB EV JC PS MW LC.