About the Authors

Wayne Hall


Affiliations University of Queensland Centre for Youth Substance Abuse Research, Royal Brisbane and Women’s Hospital, Herston, Queensland, Australia, National Addiction Centre, King’s College London, London, United Kingdom

Chris Doran

Affiliation School of Human Health and Social Sciences, Central Queensland University, Brisbane, Queensland, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Wrote the first draft of the manuscript: WH. Contributed to the writing of the manuscript: WH CD. Agree with the manuscript’s results and conclusions: WH CD. Both authors have read, and confirm that they meet, ICMJE criteria for authorship.