1. Drug Policy Modelling Program, National Drug and Alcohol Research Centre; UNSW Australia; Sydney NSW Australia
2. National Drug Research Institute, Faculty of Health Sciences; Curtin University; Perth WA Australia
3. Centre of Population Health; Burnet Institute; Melbourne VIC Australia
4. Alcohol and Drug Service; St Vincent's Hospital Sydney; Darlinghurst NSW Australia
5. Faculty of Medicine; UNSW Australia; Sydney NSW Australia