About the Authors

Joel G. Ray
Department of Medicine, St. Michael's Hospital, Toronto, Ontario, Canada

Joel G. Ray
Department of Obstetrics and Gynecology, St. Michael's Hospital, Toronto, Ontario, Canada

Joel G. Ray, Michael J. Schull, Astrid Guttmann
Department of Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada

Joel G. Ray, John J. You, Astrid Guttmann, Marian J. Vermeulen
Institute for Clinical Evaluative Sciences, University of Toronto, Toronto, Ontario, Canada

Michael J. Schull
Department of Medicine (Division of Emergency Medicine), Sunnybrook Sciences Centre, Institute for Clinical Evaluative Sciences, University of Toronto, Toronto, Ontario, Canada

Marcelo L. Urquia
Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada

John J. You
Department of Medicine, McMaster University, Hamilton, Ontario, Canada

John J. You
Department of Clinical Epidemiology & Biostatistics, McMaster University, Hamilton, Ontario, Canada

Astrid Guttmann
Department of Paediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada

Corresponding Author

rayj@smh.toronto.on.ca

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

ICMJE criteria for authorship read and met: JGR MJS MLU JJY AG MJV. Agree with the manuscript's results and conclusions: JGR MJS MLU JJY AG MJV. Designed the experiments/the study: JGR AG. Analyzed the data: JGR MJV. Collected data/did experiments for the study: JGR. Enrolled patients: JGR. Wrote the first draft of the paper: JGR. Contributed to the writing of the paper: JGR MJS MLU JJY AG MJV. Contributed to the design and interpretation of results: MLU. Contributed to the development of the analysis plan: JJY. Contributed to the design of the study: MJV.