[1] San Giovanni Decollato Andosilla Hosp, Div Gen Surg, ASL Viterbo, Civita Castellana, Italy
[2] Univ Cagliari, Dept Surg Sci, Cagliari, Italy
[3] AOU Modena, Baggiovara Gen Hosp, Dept Gen Surg Emergency & New Technol, Modena, Italy
[4] Pederzoli Hosp, Gen & Mininvas Surg Dept, Verona, Italy
[5] ASST Spedali Civili Brescia, Gen Surg Unit Chirurg 3, Brescia, Italy
[6] Geneva Univ Hosp, Dept Surg, Geneva, Switzerland
[7] Marche Polytech Univ, Dept Gen & Emergency Surg, Via Conca 71, I-60126 Ancona, Italy
[8] Sapienza Univ Rome, S Andrea Hosp, Fac Med & Psychol, Dept Med Surg Sci & Translat Med, Rome, Italy
[9] Osped Vittorio Veneto, UOC Chirurg Gen, Treviso, Italy
[10] Ist Ric Farmacol Mario Negri IRCCS, Dept Oncol, Lab Methodol Sistemat Reviews & Guidelines Prod, Milan, Italy