1. Centre for Youth Substance Abuse Research, The University of Queensland, Brisbane, QLD, Australia
2. Mental Health Institute of the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
3. School of Psychology, The University of Adelaide, Adelaide, SA, Australia
4. Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany
5. Department of Psychiatry and Psychotherapy, University of Lübeck, Lübeck, Germany
6. Central North West London NHS Trust and Division of Brain Science, Imperial College London, London, UK
7. Iranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran
8. Department of Health, Hong Kong SAR, China
9. Integrated Centre on Addiction Prevention and Treatment, Tung Wah Group of Hospitals, Hong Kong SAR, China
10. Department of Psychiatry and Mental Health, Hospital Selayang, Selangor, Malaysia
11. Mental Health and Psychiatry Department, University Hospitals of Geneva, Geneva, Switzerland
12. Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul, South Korea
13. Departments of Psychiatry and Neuroscience, Child Study Center, and The National Center on Addiction and Substance Abuse, Yale University School of Medicine, and Connecticut Mental Health Center, New Haven, CT, USA
14. Department of Psychiatry, University of Connecticut School of Medicine, Farmington, CT, USA
15. Study Group on Technological Addictions, Porto Alegre, Brazil
16. Department of Psychiatry, National Drug Dependence Treatment Centre, All India Institute of Medical Sciences, New Delhi, India
17. Applied Child Psychology and Department of Psychiatry, McGill University, Montreal, QC, Canada
18. International Gaming Research Unit, Psychology Department, Nottingham Trent University, Nottingham, UK
19. National Hospital Organization Kurihama Medical and Addiction Center, Yokosuka, Kanagawa, Japan
20. Epidemiology Unit and Centre for Alcohol Studies, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand
21. National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
22. National Rehabilitation Center, Abu Dhabi, United Arab Emirates
23. Department of Paediatrics & Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
24. National Drug and Alcohol Research Centre, University of New South Wales, Randwick, NSW, Australia
25. National Observatory on Alcohol, National Institute of Health, Rome, Italy
26. Department of Mental Health and Substance Abuse, WHO Headquarters, Geneva, Switzerland