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

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.