1. Department of Surgery, Oncology and Gastroenterology (DISCOG) University Hospital of Padua Padua Italy
2. Department of Biotechnology University of Verona Verona Italy
3. Department of Medicine, Gastroenterology Unit University of Verona Verona Italy
4. Department of Oncological Gastrointestinal Surgery Gastroenterology Unit, S. Maria del Prato Hospital Feltre Italy
5. BMR Genomics srl Padova Italy
6. Center for Esophageal Diseases and Swallowing University of North Carolina School of Medicine Chapel Hill North Carolina USA