1. Epidemiology Unit, National Cancer Institute of Naples "G. Pascale Foundation", IRCCS, 80131 Naples, Italy
2. Department of Biochemistry, Biophysics and General Pathology, University of Campania “L. Vanvitelli” Naples, Via L. De Crecchio, 7 - 80138 Naples, Italy
3. Department of Hematology and Stem Cell Transplantation Unit, IRCCS, Cancer Referral Center of Basilicata, 85028 Rionero in Vulture, Italy
4. Division of Anesthesia and Pain Medicine, National Cancer Institute "G. Pascale Foundation", IRCCS, 80131 Naples, Italy
5. Scientific Directororate, National Cancer Institute "Regina Elena", IRCCS, 80131 Rome, Italy
6. Pathology Unit, National Cancer Institute "G. Pascale Foundation", IRCCS, 80131 Naples, Italy
7. Department of Medicine Surgery and Dentistry, University of Salerno, Baronissi, 84081 Salerno, Italy