1. Drug Policy Modelling Program; National Drug and Alcohol Research Centre; University of New South Wales; Sydney; Australia
2. Viral Hepatitis Epidemiology and Prevention Program; the Kirby Institute; University of New South Wales; Sydney; Australia
3. Redfern Harm Minimisation Clinic; Sydney Local Health District; Sydney; Australia
4. Discipline of Addiction Medicine; Central Clinical School; Sydney Medical School; University of Sydney; Sydney; Australia