1. Liguria Region Cancer Registry, Descriptive Epidemiology Unit, IRCCS Azienda Ospedaliera Universitaria San Martino – IST Istituto Nazionale per la Ricerca sul Cancro, Genoa
2. Department of Health Sciences, University of Genoa, Genoa
3. National Center of Epidemiology, Surveillance and Promotion of Health, National Institute of Health, Rome
4. “Vita & Salute” San Raffaele University, Milan, Italy
5. Registro Tumori del Veneto, Istituto Oncologico Veneto IRCCS