[1
]
Clinic of Social and Family Medicine, School of Medicine, University of Crete, Heraklion,
Greece Department of Social and Behavioral Sciences, Center for Global Tobacco Control,
Harvard School of Public Health, Boston, Massachusetts, USA.
[2
]
Department of Social and Behavioral Sciences, Center for Global Tobacco Control, Harvard
School of Public Health, Boston, Massachusetts, USA Department of Primary Care and
Public Health, School of Public Health, Imperial College London, London, UK.
[3
]
Department of Social and Behavioral Sciences, Center for Global Tobacco Control, Harvard
School of Public Health, Boston, Massachusetts, USA.