1. National Drug and Alcohol Research Centre; University of NSW; Sydney Australia
2. Alpert Medical School; Brown University; Providence Rhode Island USA
3. National Centre for Epidemiology and Population Health; Australian National University; Canberra Australia
4. Centre for Health Research; University of Western Sydney; Sydney Australia
5. Kirby Institute; University of NSW; Sydney Australia
6. Australia School of Public Health and Community Medicine; University of NSW; Sydney Australia