1. British Columbia Centre on Substance Use, Vancouver, BC, Canada
2. Department of Medicine, St. Paul’s Hospital, University of British Columbia, Vancouver, BC, Canada
3. The Hope to Health Research and Innovation Centre, British Columbia Centre for Excellence in HIV/AIDS, Vancouver, BC, Canada
4. First Nations Health Authority, West Vancouver, BC, Canada
5. School of Public Health Sciences, Faculty of Health, University of Waterloo, Waterloo ON, Canada