About the Authors

G. Michael Allan

To whom correspondence should be addressed. E-mail: michael.allan@ualberta.ca

Affiliations Department of Family Medicine, University of Alberta, Edmonton, Alberta, Canada , Institute of Health Economics, Edmonton, Alberta, Canada

Joel Lexchin

Affiliations Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada , School of Health Policy and Management, York University, Toronto, Ontario, Canada

Natasha Wiebe

Affiliation Department of Medicine, University of Alberta, Edmonton, Alberta, Canada

Competing Interests

JL has been retained by lawyers acting for a Canadian generic company attempting to introduce a generic version of a product. Otherwise, the authors do not have any financial interests, relationships, or affiliations relevant to the subject matter of this manuscript.

Author Contributions

GMA conceived of the systematic review, acquired funding, and drafted the original manuscript. GMA and JL both designed the review and completed the search, inclusion/exclusion, data extraction, analysis of data, and drafting of the article. NW contributed to the data analysis and assisted in drafting the article. All authors give final approval of the article and GMA is the guarantor.