1. IBD Center, Department of Gastroenterology, Humanitas Clincal and Research Hospital (IRCCS), Milan, Italy
2. Gastroenterology, Universidade Federal de São Paulo, São Paulo, Brazil
3. Department of Gastroenterology and Inserm NGERE U1256, University Hospital of Nancy, University of Lorraine, Vandoeuvre-lès-Nancy, France
4. Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy