1. Department of Surgical Sciences, University of Turin, Turin, Italy
2. Department of General and Foregut Surgery, University of Milan, IRCCS, Policlinico San Donato, Milan, Italy
3. General and Oncologic Surgery Unit, Santa Croce e Carle Hospital, Cuneo, Italy
4. Division of Oncological and Robotic Surgery, Careggi University Hospital of Florence, Florence, Italy
5. Gastrointestinal Surgery Unit, San Raffaele Hospital, Milan, Italy
6. General, Esophageal and Gastric Surgery Unit, University Hospital of Verona, Verona, Italy
7. Digestive Surgery, European Institute of Oncology -IRCCS, Milan, Italy
8. Mini-Invasive Oncological Surgical Department, Niguarda Hospital, Milan, Italy
9. Thoracic Surgery, S. Anna Hospital, Como, Italy
10. Center for Esophageal Disease, Department of Surgery, Oncology and Gastroenterology, University Hospital of Padova, Padua, Italy
11. Esophageal Surgery Unit, University Hospital of Pisa, Pisa, Italy
12. Department of Surgery, Fondazione IRCCS Policlinico San Matteo and University of Pavia, Pavia, Italy