About the Authors

Carol Bennett

cbennett@ohri.ca

Affiliation Ottawa Hospital Research Institute, Clinical Epidemiology Program, Ottawa, Canada

Sara Khangura

Affiliation Ottawa Hospital Research Institute, Clinical Epidemiology Program, Ottawa, Canada

Jamie C. Brehaut

Affiliations Ottawa Hospital Research Institute, Clinical Epidemiology Program, Ottawa, Canada, Department of Epidemiology and Community Medicine, University of Ottawa, Ottawa, Canada

Ian D. Graham

Affiliation Canadian Institutes of Health Research, Ottawa, Canada

David Moher

Affiliations Ottawa Hospital Research Institute, Clinical Epidemiology Program, Ottawa, Canada, Department of Epidemiology and Community Medicine, University of Ottawa, Ottawa, Canada

Beth K. Potter

Affiliation Department of Epidemiology and Community Medicine, University of Ottawa, Ottawa, Canada

Jeremy M. Grimshaw

Affiliations Ottawa Hospital Research Institute, Clinical Epidemiology Program, Ottawa, Canada, Department of Medicine, University of Ottawa, Ottawa, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JG DM CB SK JB IG BP. Analyzed the data: CB SK JB DM JG. Contributed to the writing of the manuscript. CB SK JB IG DM BP JG. ICMJE criteria for authorship read and met. CB SK JB IG DM BP JG. Acqusition of data: CB SK.