1. Clinical and Experimental Oncology Department, Medical Oncology Unit 1, Veneto Institute of Oncology IOV IRCCS, Padua, Italy;
2. Esophageal and Digestive Tract Surgical Unit, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy;
3. Radiology Unit, Azienda Ospedaliera di Padova, Padua, Italy;
4. Endoscopy Unit, Castelfranco Hospital, Castelfranco, Italy;
5. Radiology Unit, Veneto Institute of Oncology IOV IRCCS, Padua, Italy