1. Translational Gastroenterology Unit, Oxford University Hospitals, Oxford, UK
2. Robarts Research Institute, Western University, London, ON, Canada
3. Department of Gastroenterology, University Hospital of Nancy, Les Nancy, France
4. Department of Medicine, University of Calgary, Calgary, AB, Canada
5. IBD Unit, Istituto Clinico Humanitas, Milan, Italy
6. AbbVie Deutschland GmbH & Co. KG, Ludwigshafen, Germany
7. AbbVie Inc., North Chicago, IL, USA
8. Formerly of AbbVie Inc., North Chicago, IL, USA