1. Department of Epidemiology and Public Health, Imperial College London, St Mary’s Campus, Norfolk Place, London, United Kingdom
2. Department of Environment and Health at the Federal Environmental Agency (UBA), Berlin, Germany
3. National Institute of Public Health and Environmental Protection (RIVM), Bilthoven, the Netherlands
4. Institute of Environmental Medicine (IMM), Karolinska Institutet, Stockholm, Sweden
5. Department of Hygiene and Epidemiology, National and Kapodistrian University of Athens, Athens, Greece
6. Environmental Epidemiologic Unit, Regional Agency for Environmental Protection (ARPA), Piedmont Region, Grugliasco, Italy
7. Laboratory of Prevention, Nurses School, National and Kapodistrian University of Athens, Athens, Greece