Nicola Cracco1, Roberto Zinicola2. 1. Department of General Surgery, Sacro Cuore Don Calabria Hospital, Via Don A. Sempreboni 5, 37024, Negrar, Verona, Italy. nicola.cracco@alice.it. 2. Department of Emergency Surgery, Parma University Hospital, Via A. Gramsci 14, 43126, Parma, Italy.