1. Department of Surgery, Section of Chirurgia 1, Sant'Anna University Hospital of Ferrara, Cona, Italy.
2. Research Innovation Quality and Accreditation Unit, Sant'Anna University Hospital of Ferrara, Cona, Italy.
3. Unit of General Surgery, Parma University Hospital, University of Parma, Parma, Italy.
4. Research Innovation Quality and Accreditation Unit, Sant'Anna University Hospital of Ferrara, Ferrara, Italy.