[1] San Giovanni Battista Hospital,Department of Surgery, Città della Scienza e della Salute
[2] Colorectal Eporediensis Centre,Gruppo Policlinico di Monza, Division of Colorectal Surgery, Clinica Santa Rita
[3] University Hospital of Pisa,General Surgery IV
[4] Catholic University,Department of Surgical Sciences
[5] University of Bari “Aldo Moro”,General Surgery and Liver Transplantation Units, Department of Emergency and Organ Transplantation