1. Gastroenterology Section, Department of Internal Medicine, Centro de Educación Médica e Investigaciones Clínicas (CEMIC), Buenos Aires, Argentina
2. INSERM U954 and Department of Hepatogastroenterology, Nancy University Hospital, Université de Lorraine, Vandoeuvre-lès-Nancy, France
3. Department of Gastroenterology, IBD Center, Humanitas Clinical and Research Center, Milan, Italy