1. Department of GeneticsPortuguese Oncology Institute of Porto Porto Portugal
2. Molecular Pathobiology Research UnitPortuguese Oncology Institute of Lisbon Lisbon Portugal
3. Department of GastroenterologyPortuguese Oncology Institute of Lisbon Lisbon Portugal
4. Familial Risk ClinicPortuguese Oncology Institute of Lisbon Lisbon Portugal
5. Department of PathologyPortuguese Oncology Institute of Porto Porto Portugal
6. Department of PathologyPortuguese Oncology Institute of Lisbon Lisbon Portugal
7. Institute of Biomedical Sciences Abel Salazar (ICBAS)University of Porto Porto Portugal
8. Department of GastroenterologyPortuguese Oncology Institute of Porto Porto Portugal