Funding for this research was provided by:
National Institute on Drug Abuse (R01DA031055-01A1)
Canadian Institutes of Health Research (MOP-107544, FDN-143342, PJT-153139, MFE-152443)
Michael Smith Foundation for Health Research (5209, 16863)
Vanier Canadian Graduate Scholarship
Received: 28 November 2018
Accepted: 3 April 2019
First Online: 24 April 2019
Ethics approval and consent to participate
: Ethics approval for this study was granted by the research ethics boards of The University of British Columbia-Providence Health Care Research Unit, The University of Victoria, and Simon Fraser University, research ethics approval number (H11–00691). Written informed consent was obtained from all participants prior to participation.
: Not applicable.
: The authors declare that they have no competing interests.
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