About the Authors
- Mohammed T. Ansari, Alexander Tsertsvadze, David Moher
- Ottawa Methods Centre, Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada
- David Moher
- Department of Epidemiology & Community Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada
The authors have declared that no competing interests exist.
ICMJE criteria for authorship read and met: MTA AT DM. Wrote the first draft of the paper: MTA. Contributed to the writing of the paper: MTA AT DM.