1. Department of Environmental and Occupational Health, Università di Milano and Istituto Di Ricovero e Cura a Carattere Scientifico, and Maggiore Hospital, Mangiagalli and Regina Elena Foundation, Milan, Italy
2. Department of Clinical Medicine, Nephrology and Health Sciences, University of Parma Medical School, Parma, Italy
3. Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
4. Department of Experimental and Applied Medicine, Occupational Medicine and Industrial Hygiene, University of Brescia, Brescia, Italy
5. Department of Clinical and Biological Sciences, University of Insubria, Varese, Italy
6. Laboratory of Environmental Epigenetics, Exposure Epidemiology and Risk Program, Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, USA