1. Department of Biomedical Sciences Humanitas University Milan Italy
2. Department of Gastroenterology and Inserm U1256 Nutrition – Genetics and Exposure to Environmental Risks University Hospital of Nancy University of Lorraine Vandoeuvre‐lès‐Nancy France
3. Section of Gastroenterology, Hepatology and Nutrition University of Chicago Department of Medicine Chicago Illinois USA
4. IBD Outpatient Clinics Catholic University or Paraná (PUCPR) Curitiba Brazil
5. Department of Gastroenterology Centro Hospitalar São João Porto Portugal
6. Medizinische Klinik m. S. Gastroenterologie, Infektiologie und Rheumatologie Charité ‐ Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin and Berlin Institute of Health Berlin Germany
7. Center for Advanced IBD Research and Treatment Kitasato University Kitasato Institute Hospital Tokyo Japan
8. Gastroenterology Section Department of Internal Medicine Centro de Educación Médica e Investigaciones Clínicas (CEMIC) Buenos Aires Argentina
9. Imelda GI Clinical Research Center Imelda General Hospital Bonheiden Belgium
10. Department of Gastroenterology CHU Liège University Hospital Liège Belgium
11. Gastroenterology Department Hospital Universitari Germans Trias i Pujol Badalona Catalonia Spain
12. Departament de Medicina Universitat Autònoma de Barcelona Barcelona Spain
13. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD) Madrid Spain
14. NIHR Biomedical Research Centre University of Birmingham and University Hospitals NHS Foundation Trust Birmingham UK
15. IBD Center Humanitas Research Hospital IRCCS Milan Italy