1. Division of General Surgery, Department of Biomedical Science for Health, I.R.C.C.S. Ospedale Galeazzi—Sant'Ambrogio, University of Milan, Milan, Italy.
2. Division of Acute Care Surgery, Department of Surgery, University of Southern California, Los Angeles, California, USA.
3. Department of Surgical Sciences, Ospedale Treviglio-Caravaggio, ASST Bergamo Ovest, University of Milan, Milan, Italy.
4. Division of General Surgery, Department of Surgery, I.R.C.C.S. Ospedale Galeazzi—Sant'Ambrogio, University of Insubria, Milan, Italy.