1. Emergency Department—Emergency and Trauma Surgery Unit, Umberto I University Hospital, Sapienza University of Rome, Rome, Italy.
2. Hepatopancreatobiliary Surgery, IRCCS—Regina Elena National Cancer Institute, Rome, Italy.
3. Department of General Surgery, Umberto I University Hospital, Sapienza University of Rome, Rome, Italy.
4. Department of General Surgery, Ospedali Riuniti Marche Nord, Pesaro, Italy.