1 Drs. Zanatta, Donati, and F. Basile are with the Department of Surgery and Medical-Surgical Specialties for the Surgical Clinic Unit at the University Hospital of Catania, University of Catania in Italy.
2 Dr. G. Basile is with the Department of Surgery and Medical-Surgical Specialties for the Emergency and Abdominal Surgery Unit at the University Hospital of Catania, University of Catania in Italy.