1. Division of Surgery, Department of Surgery, ASUI “Santa Maria della Misericordia”, Udine, Italy
2. Division of Angiographic Diagnostics and Interventional Radiology, Department of Diagnostics Imaging, ASUI “Santa Maria della Misericordia”, Udine, Italy, and
3. Unit of Clinical Surgery, Department of Medicine and Surgery, University of Parma, Parma, Italy