1 Hertfordshire Partnership University NHS Foundation Trust, Hertfordshire, UK; School of Life and Medical Sciences, University of Hertfordshire, Hatfield, UK; School of Clinical Medicine, University of Cambridge, Cambridge, UK.
2 College of Education, Psychology and Social Work, Flinders University, Adelaide, Australia; Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary; Centre of Excellence in Responsible Gaming, University of Gibraltar, Gibraltar.
3 Department of Psychiatry and Child Study Center, Yale School of Medicine, New Haven, CT, USA; Connecticut Mental Health Center, New Haven, CT, USA; Connecticut Council on Problem Gambling, Wethersfield, CT, USA; Department of Neuroscience and Wu Tsai Institute, Yale University, New Haven, CT, USA.
4 Instituto de Investigación, Transferencia e Innovación, Universidad Internacional de La Rioja, La Rioja, Spain.
5 Department of Psychiatry and Behavioral Sciences, University of Minnesota, Minneapolis, MN, USA.
6 Mental Health Policy Economics Group, Department of Psychiatry, University of Cambridge, Cambridge, UK; Sección de Psiquiatría del Niño y del Adolescente, Pontificia Universidad Católica de Chile, Santiago, Chile; Bennett Institute for Public Policy, University of Cambridge, Cambridge, UK.
7 ReConnecte Specialized Centre, Addiction Division, University Hospitals of Geneva, Geneva, Switzerland; WHO Collaborating Center, Department of Psychiatry, Faculty of Medicine, Geneva University, Geneva, Switzerland; Advisory Board on Internet-related disorders, Swiss Federal Office of Public Health, Bern, Switzerland.
8 International Drug Policy Academy, Pompidou Group, Strasbourg, France.
9 National Centre for Behavioural Addictions, London, UK; Department of Psychiatry, University of Cambridge, Cambridge, UK; Faculty of Brain Sciences, University College London, London, UK.
10 Institute of Health and Wellbeing, Federation University of Australia, Ballarat, VIC, Australia.
11 Department of Public Health Sciences, University of Connecticut School of Medicine, Farmington, CT, United States.
12 5Rights Foundation, London, UK.
13 SAMRC Unit on Risk & Resilience in Mental Disorders, Department of Psychiatry & Neuroscience Institute, University of Cape Town, Cape Town 7925, South Africa. Electronic address: dan.stein@uct.ac.za.