Funding for this research was provided by:
Public Health Agency of Canada (P001373)
Received: 11 March 2020
Accepted: 23 July 2020
First Online: 31 July 2020
Ethics approval and consent to participate
: The study has been approved by the University of British Columbia Behavioural Research Ethics Board. (H17-001602). Letters confirming ethical and funding approval are attached.
: Not applicable.
: The authors declare that they have no competing interests.