1. Centre for Health Services Research The University of Queensland Brisbane Australia
2. School of Public Health The University of Queensland Brisbane Australia
3. School of Social Science The University of Queensland Brisbane Australia
4. Faculty of Population Health Sciences University College London London UK
5. Global Drug Survey Ltd London UK
6. Department of Clinical Pharmacology University of California San Francisco San Francisco USA
7. Social and Global Studies Centre RMIT University Melbourne Australia
8. National Drug and Alcohol Research Centre UNSW Sydney Sydney Australia