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Twitter Follow Sachin Pendharkar at @srpendharkar
Contributors All authors contributed to the conception and design of the work. SRP acquired the data and drafted the article. SRP, JW, FM, and WAG conducted the analysis and interpretation. All authors contributed to a critical revision of the article, issued final approval, and agree to be accountable for all aspects of the work.
Competing interests None declared.
Ethics approval University of Calgary Conjoint Health Research Ethics Board (CHREB).
Provenance and peer review Not commissioned; externally peer-reviewed.