[1] F Miulli Gen Hosp, Unit Hepatobiliary & Pancreat Surg, Bari, Italy
[2] Magna Graecia Univ Catanzaro, Dept Med & Surg Sci, Clin Surg Unit, Med Sch, Germaneto Campus, Catanzaro, Italy
[3] Henri Mondor Univ Hosp, AP HP, UCARE Dept, Unit Digest Hepatobiliary & Pancreat Surg, Creteil, France
[4] FMiulli Gen Hosp, Unit Hepatobiliary & Pancreat Surg, Str Prov 127, I-70021 Acquaviva Delle Fonti, Bari, Italy