1. Head and Neck Medical and Experimental Oncology Unit, Istituto Nazionale Tumori, IRCCS ‘Fondazione G. Pascale’, I‑80131 Naples, Italy
2. Epidemiology and Biostatistics Unit, Istituto Nazionale Tumori, IRCCS ‘Fondazione G. Pascale’, I‑80131 Naples, Italy
3. Otolaryngology Unit, Istituto Nazionale Tumori, IRCCS ‘Fondazione G. Pascale’, I‑80131 Naples, Italy
4. Radiation Oncology Unit, Istituto Nazionale Tumori, IRCCS ‘Fondazione G. Pascale’, I‑80131 Naples, Italy
5. Otolaryngology Unit, Casa Sollievo della Sofferenza di San Giovanni Rotondo, I-71013 Foggia, Italy
6. Department of Anesthesia and Pain Medicine, Istituto Nazionale Tumori IRCCS ‘Fondazione G. Pascale’, I‑80131 Naples, Italy
7. Innovative Therapies for Abdominal Metastases, Department of Abdominal Oncology, Istituto Nazionale Tumori IRCCS ‘Fondazione G. Pascale’, I‑80131 Naples, Italy
8. Colorectal and Abdominal Surgery Unit, Istituto Nazionale Tumori IRCCS ‘Fondazione G. Pascale’, I‑80131 Naples, Italy
9. Department Melanoma, Soft Tissue, Muscle‑Skeletal and Head‑Neck, Istituto Nazionale Tumori IRCCS ‘Fondazione G. Pascale’, I‑80131 Naples, Italy
10. Medical Oncology Unit, San Rocco Hospital, Sessa Aurunca, I‑81037 Caserta, Italy