World Health Organization (WHO) - WHO European Office for the Prevention and Control of Noncommunicable Diseases, Public Health Agency of Catalonia - Program on Substance Abuse & designated WHO Collaborating Centre, World Health Organization (WHO) - WHO European Office for the Prevention and Control of Noncommunicable Diseases, Dresden University of Technology - Institute of Clinical Psychology and Psychotherapy, Imperial College London - Centre for Health Economics and Policy Innovation, Parliament of the Republic of Lithuania - Committee of Health and University of Toronto - Centre for Addiction and Mental Health (CAMH)