| Affiliation: | 1. Division of General and Upper Gastrointestinal Surgery, Department of Surgery, University of Verona, Verona, Italy;2. Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy;3. Department of Surgery, Konkuk University Medical Centre, Seoul, Korea;4. Section of General Surgery and Surgical Oncology, Translational Research Laboratory, Department of Human Pathology and Oncology, University of Siena, Siena, Italy;5. Department of Surgery, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea |
