1. School of Psychology, The University of Queensland, Brisbane, QLD, Australia
2. School of Applied Psychology and Center for Mental Health, Griffith University, Brisbane, QLD, Australia
3. Center for Health Services Research, The University of Queensland, Brisbane, QLD, Australia
4. Center for Psychological Research, Oxford Brookes University, Oxford, UK
5. Social Equity Research Center and Digital Ethnography Research Center, RMIT University, Melbourne, VIC, Australia
6. National Drug and Alcohol Research Center, UNSW Sydney, Sydney, NSW, Australia
7. University College London, London, UK
8. Global Drug Survey, London, UK
9. School of Public Health, The University of Queensland, Brisbane, QLD, Australia