About the Authors
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
Università di Modena e Reggio Emilia, Modena, Italy
Centro Cochrane Italiano, Istituto Ricerche Farmacologiche Mario Negri, Milan, Italy
Centre for Statistics in Medicine, University of Oxford, Oxford, United Kingdom
The authors have declared that no competing interests exist.
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.