1. IBD UnitSan Camillo‐Forlanini HospitalRomeItaly
2. Gastroenterologia AziendaleUSL Umbria 1PerugiaItaly
3. Department of Internal MedicineSan Matteo Hospital FoundationUniversity of PaviaPaviaItaly
4. Gastroenterology UnitUniversity Campus Bio‐MedicoRomeItaly
5. Biostatistics UnitRegina Elena National Cancer InstituteRomeItaly
6. IBD UnitSan Filippo Neri HospitalRomeItaly