1. Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, Università della Campania ‘Luigi Vanvitelli,’, Naples, Italy
2. Division of Medical Oncology, Department of Internal and Experimental Medicine ‘F. Magrassi’, Università della Campania ‘Luigi Vanvitelli,’, Naples, Italy
3. Division of Hepatogastroenterology, Department of Clinical and Experimental Medicine, Università della Campania ‘Luigi Vanvitelli,’, Naples, Italy
4. General Surgery Unit, Department of Anesthesiology, Surgery and Emergency, Università della Campania ‘Luigi Vanvitelli,’, Naples, Italy
5. Department of Internal Medicine, Surgical, Neurological Metabolic Disease and Geriatric Medicine, Università della Campania ‘Luigi Vanvitelli,’, Naples, Italy
6. Pathology Unit, Istituto dei tumori ‘Fondazione G. Pascale’