1. Department of Studies on Alcohol and Drug Dependence, Institute of Psychiatry and Neurology, Warsaw, Poland
2. Institute of Health and Society (IRSS), Faculty of Public Health, Université catholique de Louvain, Institute of Health and Society (IRSS), Université Catholique de Louvain, Bruxelles, Belgium
3. Unit for Social and Community Psychiatry, Queen Mary University of London, London, UK