1. Colorectal Surgery, Vall d’Hebron University Hospital, Universitat Autonoma de Barcelona UAB , Barcelona , Spain
2. Colorectal Surgery, Department of Advanced Medical and Surgical Sciences, Università degli Studi della Campania ‘Luigi Vanvitelli’ , Naples , Italy
3. Molecular Medicine, Biomedical Research Institute of Salamanca (IBSAL) , Salamanca , Spain
4. Department of Surgery, Vithas Arturo Soria University Hospital , Madrid , Spain