1. Department of General and Digestive Surgery, Dr. Josep Trueta University Hospital, Catalonia, Spain
2. Girona Biomedical Research Institute (IDIBGI), Girona, Catalonia, Spain
3. Metabolism & Cancer Group, Translational Research Laboratory, Catalan Institute of Oncology, Girona, Catalonia, Spain
4. Unit of Clinical Research, Catalan Institute of Oncology, Girona, Catalonia, Spain
5. Department of Anatomical Pathology, Dr. Josep Trueta University Hospital, Girona, Catalonia, Spain
6. Medical Oncology, Catalan Institute of Oncology, Girona, Catalonia, Spain
7. Unitat de Recerca Biomèdica (URB-CRB), Institut d'Investigació Sanitaria Pere i Virgili (IISPV), Universitat Rovira i Virgili; Reus, Catalonia, Spain