1 Colorectal Unit, Department of General and Digestive Surgery, Bellvitge University Hospital, University of Barcelona and IDIBELL (Bellvitge Biomedical Investigation Institute), C/Feixa Llarga s/n, L'Hospitalet de Llobregat, 08907, Barcelona, Spain. sbn.biondo@gmail.com.
2 Colorectal Unit, Department of General and Digestive Surgery, Bellvitge University Hospital, University of Barcelona and IDIBELL (Bellvitge Biomedical Investigation Institute), C/Feixa Llarga s/n, L'Hospitalet de Llobregat, 08907, Barcelona, Spain.