| Affiliation: | 1. Department of Medicine, University of California San Diego, La Jolla, CA, USA;2. School of Population Health Sciences, King's College London, Addison House, Guy's Campus, London, UK;3. Behaviours and Health Risks Program, Burnet Institute, Melbourne, Victoria, Australia;4. School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia;5. British Columbia Centre on Substance Use, Vancouver, BC, Canada;6. Division of AIDS, Department of Medicine, University of British Columbia, Vancouver, BC, Canada;7. International Centre for Science in Drug Policy, St Michael's Hospital, Toronto, ON, Canada |
