1. Department of Gastroenterology and Hepatology, University Medical Center Utrecht, The Netherlands
2. Department of Gastroenterology and Hepatology, St. Antonius Hospital, Nieuwegein, The Netherlands
3. Department of Gastroenterology and Hepatology, Meander Medical Center, Amersfoort, The Netherlands
4. Department of Gastroenterology and Hepatology, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
5. Department of Gastroenterology and Hepatology, Medical Center Haaglanden, Den Haag, The Netherlands
6. Department of Gastroenterology and Hepatology, Medical Spectrum Twente, Enschede, The Netherlands
7. Department of Gastroenterology and Hepatology, Jeroen Bosch Hospital, Den Bosch, The Netherlands
8. Department of Gastroenterology and Hepatology, The Gelderse Vallei Hospital, Ede, The Netherlands