1. National Drug and Alcohol Research Centre; University of New South Wales; Sydney Australia
2. Melbourne School of Population and Global Health; University of Melbourne; Melbourne Australia
3. Alpert Medical School; Brown University; Providence RI USA
4. Centre for Health Research; School of Medicine; University of Western Sydney; Penrith Australia
5. University of Queensland Centre for Clinical Research; University of Queensland; Herston Australia
6. National Addiction Centre; Kings College; London UK