1. Romagna Cancer Registry Romagna Cancer Institute, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS Meldola, Forlì Italy
2. Cancer Epidemiology Unit Centro di Riferimento Oncologico di Aviano (CRO) IRCCS Aviano Italy
3. Tuscany Cancer Registry, Clinical and Descriptive Epidemiology Unit Institute for Cancer Research, Prevention and Clinical Network (ISPRO) Florence Italy
4. Modena Cancer Registry, Public Health Department Local Health Authority Modena Italy
5. Romagna Cancer Registry section of Ferrara, Local Health Authority, and University of Ferrara Ferrara Italy
6. Liguria Cancer Registry IRCCS Ospedale Policlinico San Martino Genoa Italy
7. Napoli 3 Sud Cancer Registry Naples Italy
8. Mantova Cancer Registry, Epidemiology Unit Agenzia di Tutela della Salute (ATS) della Val Padana Mantova Italy
9. Department of Experimental Medicine University of Perugia Perugia Italy
10. Registry of Brescia Province, Epidemiology Unit Brescia Health Protection Agency Brescia Italy
11. Epidemiology Unit Azienda Unità Sanitaria Locale – IRCCS di Reggio Emilia Reggio Emilia Italy
12. South Tyrol Tumour Registry Bolzano Italy
13. Parma Cancer Registry, Medical Oncology Unit University Hospital of Parma Parma Italy
14. Trento Province Cancer Registry, Unit of Clinical Epidemiology Trento Italy
15. Sassari Cancer Registry, Azienda Regionale per la Tutela della Salute – ATS Sassari Italy
16. Piedmont Cancer Registry, A.O.U. Città della Salute e della Scienza di Torino Turin Italy
17. Veneto Tumour Registry, Azienda Zero Padova Italy
18. Cancer Registry – ASL Salerno Salerno Italy
19. Lombardy Cancer Registry‐Varese Province, Cancer Registry Unit, Department of Research Fondazione IRCCS Istituto Nazionale Tumori Milan Italy
20. Cancer Registry and Histopathology Department Provincial Health Authority (ASP) Ragusa Italy
21. Skin Cancer Unit Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS Meldola, Forlì Italy
22. Department of Dermatology University of Parma Parma Italy
23. Cancer Prevention Unit Local Health Authority Forlì Italy