1. Gastroenterology Unit, Department of Medical and Surgical SciencesUniversity of FoggiaFoggia Italy
2. Rheumatology Unit, Medical SchoolUniversity of BariBari Italy
3. Gastroenterology Unit, Department of Emergency and Organ TransplantationUniversity of BariBari Italy
4. Department of Surgery–Transplantation ServiceCatholic University of RomeRome Italy
5. Rheumatology Unit, Department Research Center of Systemic Autoimmune and Autoinflammatory DiseasesUniversity of SienaSiena Italy