1. Institute of Medical Sociology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
2. Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
3. Institute of Health and Society, UC Louvain, Brussels, Belgium
4. Faculty of Social Sciences, Unit of Health Sciences, Tampere University, Tampere, Finland
5. Department of Adolescent Psychiatry, Tampere University Hospital, Nokia, Finland
6. Department of Human Sciences, Society and Health, University of Cassino and Southern Lazio, Cassino, Italy