1 Colorectal Surgical Oncology, Department of Abdominal Oncology, Istituto Nazionale Tumori-IRCCS "Fondazione G. Pascale", 80131, Naples, Italy. d.rega@istitutotumori.na.it.
2 Colorectal Surgical Oncology, Department of Abdominal Oncology, Istituto Nazionale Tumori-IRCCS "Fondazione G. Pascale", 80131, Naples, Italy.