1. Department of Psychiatry and Mental Health, SA Medical Research Council Unit on Risk and Resilience in Mental DisordersUniversity of Cape Town Cape Town South Africa
2. Institute for Health and BehaviourUniversity of Luxembourg Luxembourg
3. Division of Brain ScienceImperial College London London UK
4. Department of Psychiatry and Behavioral NeuroscienceUniversity of Chicago Chicago IL USA
5. University of Hertfordshire, Hatfield, and School of Clinical MedicineCambridge University Cambridge UK
6. National Center for Addiction Services Administration Yokosuka Kanagawa Japan
7. Mental Health InstituteCentral South University Changsha China
8. Central Institute of Mental Health Mannheim Germany
9. Department of NeuropsychiatryHyogo College of Medicine Nishinomiya Japan
10. Yale University School of Medicine, and Connecticut Council on Problem Gaming Clinton CT USA
11. Clinic for Psychiatry and PsychotherapyUniversity of Lübeck Lübeck Germany
12. Institute of PsychiatryPsychology and Neuroscience, King's College London London UK
13. Department of PsychiatrySwami Rama Himalayan University Dehradun India
14. Disciplines of Psychiatry and Addiction MedicineUniversity of Sydney Sydney NSW Australia
15. Department of Mental Health and Substance AbuseWorld Health Organization Geneva Switzerland