Funding for this research was provided by:
National Institute on Drug Abuse (R01DA031055-01A1)
Canadian Institutes of Health Research (MFE-152443, MOP-107544, FDN-143342, PJT-153139)
Canadian Foundation for AIDS Research (Postdoctoral Fellowship Award)
Michael Smith Foundation for Health Research (16863, 5209)
Received: 10 September 2018
Accepted: 18 January 2019
First Online: 28 January 2019
Ethics approval and consent to participate
: Ethics approval for the study was granted by the Research Ethics Board at the University of British Columbia and Providence Health Care (H11-00691). Informed written consent was provided by all study participants. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committees and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: As part of the written consent process, all study participants consented to the publication of these findings.
: The authors declare that they have no competing interests.
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