2 National Public Health Organization (NPHO), Athens, Greece.
3 Austrian Agency for Health and Food Safety (AGES), Vienna, Austria.
4 Istituto Superiore di Sanità (ISS), National Centre on Addiction and Doping, Rome, Italy.
5 ANSES, Risk Assessment Department, Maisons-Alfort, France.
6 Centre for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands.
7 Tobacco Control Unit, Catalan Institute of Oncology (ICO); Tobacco Control Research Group, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL); L'Hospitalet, Spain; CIBER Respiratory Diseases (CIBERES), Madrid, Spain.
8 Finnish Institute for Health and Welfare (THL), Helsinki, Finland.