1. Gastroenterology Unit, Department of Medicine AOUI Policlinico GB Rossi and University of Verona Verona Italy
2. Service of Clinical Epidemiology & Biostatistics, Fondazione IRCCS Policlinico San Matteo and University of Pavia Pavia Italy
3. Department of Clinical Science Takeda Pharmaceutical Company Limited Cambridge Massachusetts USA
4. Division of Gastroenterology Beth Israel Deaconess Medical Center Boston Massachusetts USA
5. Department of Pharmacovigilance Takeda Pharmaceutical Company Limited Cambridge Massachusetts USA
6. Department of Epidemiology Takeda Pharmaceutical Company Limited Cambridge Massachusetts USA
7. Department of Internal Medicine Fondazione IRCCS Policlinico San Matteo and University of Pavia Pavia Italy