1. Romagna Cancer Registry; Romagna Cancer Institute; Meldola Forli Italy
2. Clinical and Descriptive Epidemiology Unit; Cancer Prevention and Research Institute; Florence Italy
3. Department of Health; Emilia-Romagna Region; Bologna Italy
4. Epidemiology Unit; Varese Health Care District; Varese Italy
5. Epidemiology Unit and Cancer Registry; Trento Italy
6. Epidemiology Unit and Cancer Registry; Sondrio Health Care District; Sondrio Italy
7. Department of Medical-Surgical Specialties and Public Health; University of Perugia; Perugia Italy
8. Veneto Cancer Registry; Veneto Oncology Institute; Institute for Cancer Research and Treatment; Padova Italy