1. Faculty of Social Sciences, Unit of Health Sciences, Tampere University, Tampere, Finland
2. Department of Adolescent Psychiatry, Pitkäniemi Hospital, Nokia, Tampere University Hospital, Finland
3. PERLA - Tampere Centre for Childhood, Youth and Family Research, Tampere University, Tampere, Finland
4. TobaccoFree Research Institute Ireland, Dublin, Ireland
5. NOVA National School of Public Health, Public Health Research Centre, Universidade NOVA de Lisboa, Lisbon, Portugal
6. Comprehensive Health Research Center (CHRC), Lisbon, Portugal
7. Institute of Medical Sociology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
8. Department of Public and Occupational Health, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
9. Institute of Health and Society, Université catholique de Louvain, Brussels, Belgium