1. Department of Public Health, Experimental and Forensic Medicine; University of Pavia; Pavia; Italy
2. Departement of Clinical Sciences and Community Health; Università degli Studi di Milano; Milan; Italy
3. Foundation IRCCS Istituto dei Tumori; Cancer Registry and Environmental Epidemiology Unit; Milan; Italy
4. Local Health Unit; SS UOPSAL 3; Milan; Italy
5. Department of Public Health, Experimental, and Forensic Medicine; University of Pavia; Pavia; Italy