1. National Drug and Alcohol Centre; University of New South Wales; Sydney Australia
2. University of Sydney, Discipline of Addiction Medicine; Sydney Australia
3. Drug and Alcohol Services; South Eastern Sydney Local Health District; Sydney Australia
4. School of Medicine; University of Tasmania; Hobart Australia
5. School of Population and Global Health; University of Melbourne; Melbourne Australia
6. Murdoch Children's Research Institute; Royal Children's Hospital; Melbourne Australia
7. Department of Global Health, School of Public Health; University of Washington; Seattle USA
8. School of Public Health and Community Medicine; University of New South Wales; Sydney Australia