1. Gastroenterology Department Instituto Português de Oncologia de Lisboa Francisco Gentil, EPE Lisbon Portugal
2. Faculty of Health Sciences University of Beira Interior Covilhã Portugal
3. Center of Mathematics and Applications (CMA‐UBI) University of Beira Interior Covilhã Portugal
4. Pathology Department Instituto Português de Oncologia de Lisboa Francisco Gentil, EPE Lisbon Portugal
5. Faculty of Medicine University of Lisbon Lisbon Portugal
6. Gastroenterology Department Hospital Beatriz Ângelo Loures Portugal