1. Tobacco Control Unit and WHO Collaborating Center for Tobacco Control, Catalan Institute of Oncology (ICO), L’Hospitalet de Llobregat, Spain
2. Bellvitge Biomedical Research Institute (IDIBELL), L’Hospitalet de Llobregat, Spain
3. School of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
4. Consortium for Biomedical Research in Respiratory Diseases (CIBERES), Madrid,Spain
5. Department of Psychology, University of Waterloo, Waterloo,Canada
6. School of Public Health Sciences, University of Waterloo, Waterloo, ON, Canada
7. Cancer Prevention Unit and WHO Collaborating Centre for Tobacco Control, German Cancer Research Center, Heidelberg, Germany
8. Heart Center, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
9. Health Promotion Foundation, Warsaw, Poland
10. Centre for Behaviour Change, Clinical, Educational and Health Psychology, University College London, London, UK
11. Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, UK
12. European Network on Smoking and Tobacco Prevention, Brussels, Belgium
13. Smoking or Health Hungarian Foundation, Budapest, Hungary
14. University of Medicine and Pharmacy “Grigore T. Popa” Iasi, Iasi, Romania
15. Aer Pur Romania, Bucharest, Romania
16. Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
17. Collegium Civitas, Warsaw, Poland
18. First ICU Evaggelismos Hospital Athens, National and Kapodistrian University of Athens, Athens, Greece
19. European Respiratory Society, Lausanne, Switzerland
20. Laboratory of Toxicology, School of Medicine, University of Crete, Heraklion, Greece
21. Ontario Institute for Cancer Research, Toronto, ON, Canada