1. Interdisciplinary Studies Graduate Program University of British Columbia Vancouver BC Canada
2. BC Centre on Substance Use Vancouver BC Canada
3. Department of Social and Preventive Medicine, Faculty of Medicine University of Malaya Kuala Lumpur Malaysia
4. Department of Medicine University of British Columbia Vancouver BC Canada
5. BC Centre for Excellence in HIV/AIDS St Paul's Hospital Vancouver BC Canada
6. Vancouver Coastal Health Vancouver BC Canada
7. School of Population and Public Health University of British Columbia Vancouver BC Canada
8. Department of Sociology University of British Columbia Vancouver BC Canada