1. Department of Surgery; University of Nebraska Medical Center; Omaha Nebraska
2. Department of Gastrointestinal Surgery; Ghent University Hospital Belgium; Gent Belgium
3. National Cancer Institute of Milan; Milan Italy
4. Department of Gynecologic Oncology; Aegean Obstetrics and Gynecology Education and Research Hospital; Izmir Turkey
5. Department of Surgery; Wake Forest University Baptist Medical Center; Winston Salem North Carolina
6. Unit of Oncological and Pancreatic Surgery, Department of General and Digestive Surgery; University Hospital Reina Sofia; Cordoba Spain
7. Service de Chirurgie Générale et Oncologique; Centre Hospitalier Lyon-Sud; Pierre-Bénite France
8. Department of Surgical Oncology; St. Agnes Hospital; Baltimore Maryland