1. Environmental Epidemiological Unit, Regional Environmental Protection Agency, Piedmont, Turin, Italy
2. Department of Epidemiology, Rome E Local Health Authority, Rome, Italy
3. Cancer Epidemiology Unit, Center for Cancer Prevention, Piedmont, Turin, Italy
4. Epidemiology Unit, Local Health Authority, Milan, Italy
5. Department of Biology, University of Pisa, Pisa, Italy
6. Department of Prevention, Local Health Authority, Cagliari, Italy
7. Epidemiological Observatory, Regional Health Authority, Palermo, Italy
8. Institute for Cancer Study and Prevention, Florence, Italy
9. Epidemiology Observatory, Department of Public Health, Local Health Authority, Bologna, Italy
10. Statistics and Epidemiology Unit, Local Health Authority, Taranto, Italy
11. Department of Environmental Medicine and Public Health, School of Medicine, University of Padova, Padova, Italy