1. Escola Nacional de Saúde Pública, Universidade NOVA de Lisboa, Lisboa, Portugal
2. Centro de Investigação em Saúde Pública, Lisboa, Portugal
3. Local Health Unit of Matosinhos, Matosinhos, Portugal
4. TobaccoFree Research Institute Ireland, Dublin, Ireland
5. Institute of Medical Sociology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
6. Unit of Health Sciences, Faculty of Social Sciences, Tampere University, Tampere, Finland
7. Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
8. Institute of Health and Society, Université catholique de Louvain, Brussels, Belgium
9. Department of Adolescent Psychiatry, Tampere University Hospital, Tampere, Finland