1. Department of Hepatology and Gastroenterology, Department of Clinical Medicine, Aarhus University Hospital/Aarhus University, Aarhus, Denmark;
2. Hamilton Health Sciences, McMaster Medical Centre Hamilton, Hamilton, Ontario, Canada;
3. Centre for Gastroenterology, Royal Free Hospital, London, UK;
4. Karolinska Institutet Department of Clinical Science, Stockholm Gastro Center, Stockholm, Sweden;
5. Department of Gastroenterology, AZ Delta Roeselare-Menen, Roeselare, Belgium;
6. Department of Gastroenterology, Manchester Royal Infirmary/School of Nursing, University of Manchester, Manchester, UK