1. Faculty of Medicine of the University of Porto (FMUP)
2. Pathology
3. Faculty of Medicine, Catholic University of Portugal
4. NOVA Medical School, Universidade NOVA Lisbon
5. Department of Gastroenterology, Beatriz Angelo Hospital (HBA), Loures, Portugal
6. i3S (Instituto de Investigação e Inovação em Saúde) and Ipatimup (Institute of Molecular Pathology and Immunology of the University of Porto)
7. Department of Pathology, Centro Hospitalar Universitário do Porto (CHUP)
8. Surgery
9. Department of Pathology, University Hospital Center of São João (CHUSJ)
10. Gastroenterology, Hospital da Luz Lisbon
11. Faculty of Medicine, University of Lisbon (FMUL), Lisbon
12. Department of Pathology, FMUP, Porto