1. Pathology Unit Fondazione IRCCS Casa Sollievo della Sofferenza San Giovanni Rotondo FG Italy
2. Pathology Unit Azienda Ospedaliera Santa Maria di Terni, University of Perugia Terni Italy
3. Oncology Unit Fondazione IRCCS Casa Sollievo della Sofferenza San Giovanni Rotondo FG Italy
4. Pathology Unit Azienda USL‐IRCCS di Reggio Emilia Reggio Emilia Italy
5. Medical Oncology Unit, Department of Precision Medicine “Luigi Vanvitelli” University of Campania Naples Italy
6. Division of Gastrointestinal Medical Oncology and Neuroendocrine Tumors IEO, European Institute of Oncology, IRCCS Milan Italy