Athina Kyrlesi1,5
, Elpidoforos S Soteriades2
, Charles W Warren3
, Jeni Kremastinou4
, Panagiotis Papastergiou5
, Nathan R Jones3
and Christos Hadjichristodoulou5 
1
Department of Public Health, Ministry of Health and Social Solidarity, Athens, Greece
2
Department of Environmental Health, Environmental and Occupational Medicine and Epidemiology (EOME), Harvard School of Public Health, Boston, MA, USA
3
Office for Smoking and Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
4
Department of Public Health, National School of Public Health, Athens, Greece
5
Department of Hygiene and Epidemiology, Medical Faculty, University of Thessaly, Larisa, Greece