1. Department of General Surgery, Urgency and Organ Transplantation, University of Palermo, Palermo, Italy
2. Department of Human Pathology University Hospital of Messina, Messina, Italy
3. Department of Anesthesiologic, Surgical and Emergency Sciences, Division of General and Oncologic Surgery, School of Medicine, Second University of Naples, Naples, Italy
4. Department of Surgery and Oncology, University of Palermo, Palermo, Italy
5. Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Palermo, Italy
6. Section of Radiology - Di.Bi.Me.F., University of Palermo, Palermo, Italy
7. Department of Obstetrics and Gynecology, University of Palermo, Palermo, Italy