1. General and Mininvasive Surgical Unit, San Camillo Hospital, Trento, Italy
2. Department of Surgical Specialities and Nephrology, University of Naples Federico II, Naples, Italy
3. Multidisciplinary Department of Medical, Surgical and Dental Sciences, Second University of Naples, Naples, Italy
4. General, Laparoscopic and Robotic Surgical Unit, Monaldi Hospital, Naples, Italy