1 Department of Gastroenterology, Algarve University Hospital Centre, Portimão, Portugal; ABC - Algarve Biomedical Centre, University of Algarve, Faro, Portugal. Electronic address: joaoacunhaneves@gmail.com.
2 Department of Gastroenterology, Algarve University Hospital Centre, Portimão, Portugal; ABC - Algarve Biomedical Centre, University of Algarve, Faro, Portugal.
3 ABC - Algarve Biomedical Centre, University of Algarve, Faro, Portugal; Colorectal Disease Group - Department of General Surgery, Algarve University Hospital Centre, Portimão, Portugal; Biomedical Sciences and Medicine, Algarve University, Gambelas, Portugal.
4 Department of Advanced Medical and Surgical Sciences, Universitá degli Studi della Campania "Luigi Vanvitelli, Naples, Italy; Colorectal Surgery, Vall d'Hebron University Hospital, Barcelona, Spain. Electronic address: gianluca.pellino@unicampania.it.
5 Division of General and HPB Surgery, ASST Rhodense Rho Memorial Hospital, Milan, Italy.
6 Department of Gastroenterology and Hepatology, Hospital Universitario Ramon y Cajal, University of Alcala, IRYCIS, Madrid, Spain.