About the Authors

Steven G. Morgan

morgan@chspr.ubc.ca

Affiliations Centre for Health Services and Policy Research, University of British Columbia, Vancouver, British Columbia, Canada, School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada

Colleen M. Cunningham

Affiliation Centre for Health Services and Policy Research, University of British Columbia, Vancouver, British Columbia, Canada

Gillian E. Hanley

Affiliations Centre for Health Services and Policy Research, University of British Columbia, Vancouver, British Columbia, Canada, School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SGM CMC GEH. Analyzed the data: SGM CMC GEH. Wrote the paper: SGM CMC GEH.