1. Group of Evaluation of Health Determinants and Health Policies, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Spain
2. Tobacco Control Unit, Cancer Prevention and Control Programme, Catalan Institute of Oncology-ICO, L’Hospitalet de Llobregat, Spain
3. Cancer Control and Prevention Group, Bellvitge Biomedical Research Institute-IDIBELL, L’Hospitalet de Llobregat, Spain
4. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health
5. Social and Cardiovascular Epidemiology Research Group, School of Medicine, University of Alcalá. Alcalá de Henares, Madrid, Spain
6. Plan for Oncology of the Catalan Government, L’Hospitalet de Llobregat, Spain
7. Department of Clinical Sciences, School of Medicine, Universitat de Barcelona, Barcelona, Spain