Funding for this research was provided by:
National Institutes of Health (U01DA038886)
National Institutes of Health (U01DA0251525)
Accepted: 9 June 2021
First Online: 26 June 2021
: All participants provided informed consent and VIDUS and ACCESS cohorts have been approved by the University of British Columbia’s Research Ethics Board.
: Not applicable.
: The authors declare that they have no competing interests.