[1] Ausl Romagna, Morgagni Pierantoni Hosp, Gen & Oncol Surg, Forli, Italy
[2] Santa Maria Misericordia Hosp, Gen Surg Unit, Rovigo, Italy
[3] Univ Siena, Dept Med Surg & Neurosci, Gen Surg & Surg Oncol, I-53100 Siena, Italy
[4] Osped San Raffaele, Hepatobiliary Surg Div, Via Olgettina 60, Milan, Italy
[5] Osped Valtiberina, UOC Chirurg Gen, Usl Toscana Sud Est, Sansepolcro, Arezzo, Italy
[6] Messina Univ, Med Sch Hosp, Peritoneal Surface Malignancy & Soft Tissue Sarco, Messina, Italy
[7] Fdn Policlin Univ Agostino Gemelli IRCCS, Dipartimento Sci Med & Chirurg, UOC Chirurg Gen, Rome, Italy
[8] Fdn IRCCS Ist Nazl Tumori, Dept Surg, Milan, Italy