1. Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada
2. British Columbia Centre on Substance Use, Vancouver, BC, Canada
3. Centre for Applied Research in Mental Health and Addiction, SFU Faculty of Health Sciences, Vancouver, BC, Canada
4. Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
5. BC Centre for Excellence in HIV/AIDS, Vancouver, B.C, Canada
6. School of Public Policy, Simon Fraser University, Vancouver, BC, Canada