[1] FPO IRCCS, Candiolo Canc Inst, Surg Oncol Unit, Candiolo, TO, Italy
[2] Fdn IRCCS Policlin San Matteo, Gen Surg, Pavia, Italy
[3] Azienda Ospedaliera Rilievo Nazl & Alta Specializz, Dipartimento Oncol, Soft Tissue UO Surg Oncol Soft Tissue Tumors, I-95123 Catania, Italy
[4] Univ Udine, Adv Surg Oncol Ctr, ASUFC, DAME, I-33100 Udine, Italy
[5] Univ Verona, Upper GI Surg Div, I-37129 Verona, Italy
[6] Pisa Univ Hosp, Gen Emergency & Trauma Surg, Pisa, Italy
[7] Osped Policlin San Martino, Genoa, Italy
[8] Fdn Policlin Univ A Gemelli IRCCS, Surg Unit Peritoneum & Retroperitoneum, Rome, Italy
[9] AUSL Romagna, Morgagni Pierantoni Hosp, Gen & Oncol Dept Surg, Forli, Italy
[10] AOU Modena Univ Modena & Reggio Emilia, Gen & Oncol Surg Unit, Modena, Italy
[11] Univ Perugia, Santa Maria Misericordia Hosp, Gen & Emergency Surg Dept, Perugia, Italy
[12] Fdn IRCCS Ist Nazl Tumori, Dept Surg, Peritoneal Surface Malignancy Unit, Milan, Italy
[13] Hosp Univ Pisa AOUP, Dept Surg Gen & Peritoneal Surg, Pisa, Italy
[14] SCamillo Forlanini Hosp, Dept Gen & Emergency Surg, Rome, Italy
[15] Univ Messina, Dept Human Pathol Adulthood & Childhood Gaetano Ba, Messina, Italy
[16] Univ Siena, Dept Med Surg & Neurosci, Unit Gen Surg & Surg Oncol, I-53100 Siena, Italy
[17] Umberto I Policlin Roma, CRS & HIPEC Unit, Pietro Valdoni, I-00161 Rome, Italy
[18] Fdn Giovanni Pascale IRCCS, UOSD Ric Integrata Med Chirurg nelle Neoplasie Per, Naples, Italy
[19] IBD Unit Chirurg Apparat Digerente, AOU Careggi, I-50100 Florence, Italy
[20] IRCCS, Veneto Inst Oncol IOV, Unit Surg Oncol Esophagus & Digest Tract, Padua, Italy
[21] IRCCS, Regina Elena Canc Inst, Peritoneal Tumours Unit, I-00144 Rome, Italy