1. Department of Gastroenterology, Portuguese Oncology Institute, Porto, Portugal
2. MEDCIDS, Faculty of Medicine, University of Porto, Porto, Portugal
3. Porto Comprehensive Cancer Center, (Porto.CCC) & RISE@CI-IPOP (Health Research Network), Porto, Portugal
4. Department of Gastroenterology, Centro Hospitalar Universitário São João, Porto, Portugal
5. Department of Medicine, Faculty of Medicine, University of Porto, Porto, Portugal
6. Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal
7. Department of Pathology, Portuguese Oncology Institute of Porto, Porto, Portugal
8. Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
9. School of Medicine and Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal