1. Department of Law and Criminology, Sheffield Hallam University, Sheffield, England
2. Department of Special Needs Education, Ghent University, Ghent, Belgium
3. Tranzo Scientific Center for Care and Welfare, Social and Behavioural Sciences, Tilburg University, Tilburg, the Netherlands
4. Centre of Expertise on Quality of Life, Faculty of Health, Education and Social Work, University College Ghent, Belgium
5. Department of Criminology, Criminal Law and Social Law, Ghent University, Ghent, Belgium
6. IVO Addiction Research Institute, The Hague, the Netherlands
7. Department of Health Promotion and Department of Family Medicine, Maastricht University (CAPHRI), Maastricht, the Netherlands