| Affiliation: | 1. Department of Surgery, Division of General Surgery at SIU, Southern Illinois University School of Medicine, 701 North First Street, Springfield, IL 62794, USA;2. Department of Internal Medicine, Division of Gastroenterology, Southern Illinois University School of Medicine, 701 North First Street, Springfield, IL 62794, USA;1. Department of Surgical Sciences, University of Torino, Corso A. M. Dogliotti 14, Torino 10126, Italy;2. Center for Esophageal Diseases, Department of Surgery, University of Chicago Pritzker School of Medicine, 5841 South Maryland Avenue, MC 5095, Room G-207, Chicago, IL 60637, USA;1. Center for Advanced Surgical Technology, University of Nebraska Medical Center, 986245 Nebraska Medical Center, Omaha, NE 68198-6245, USA;2. Department of Surgery, University of Nebraska Medical Center, 986245 Nebraska Medical Center, Omaha, NE 68198-6245, USA |
