1 Faculty of Medical and Health Sciences, University of Auckland, 85 Park Rd, Grafton, Auckland 1023, New Zealand.
2 Centre for Applied Research in Mental Health and Addiction (CARMHA), Faculty of Health Sciences, Simon Fraser University, Suite 2400 515 W. Hastings Street, Vancouver, British Columbia, V6B 5K3, Canada.
3 Department of Psychiatry, University of Toronto, 250 College Street 8th floor, Toronto, Ontario, M5T 1R8, Canada.
4 Department of Psychiatry, Federal University of São Paulo (UNIFESP), R. Dr. Ovídio Pires de Campos, 785 05403-90, São Paulo, Brazil.
5 Centre for Youth Substance Abuse Research (CYSAR), K Floor Mental Health Centre, The University of Queensland, Royal Brisbane and Women's Hospital Site, Herston, Queensland, 4029, Australia.
6 National Addiction Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, 16 De Crespigny Park, London, SE5 8AF, United Kingdom.