1. National Drug and Alcohol Research Centre, UNSW Sydney Sydney Australia
2. Centre for Social Research in Health, UNSW Sydney Sydney Australia
3. Institute for Social Science Research The University of Queensland Brisbane Australia
4. Behaviours and Health Risks Program, Burnet Institute Melbourne Australia
5. National Drug Research Institute Melbourne Australia
6. Department of Epidemiology and Preventive Medicine Monash University Melbourne Australia
7. School of Psychology University of Tasmania Hobart Australia