1. Department of Gastroenterology and Hepatology, VU University Medical Center, Amsterdam, The Netherlands
2. Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, The Netherlands
3. Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands
4. Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, The Netherlands
5. Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
6. Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
7. Department of Gastroenterology and Hepatology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
8. Department of Gastroenterology and Hepatology, Haga Hospital, The Hague, The Netherlands
9. Department of Gastroenterology and Hepatology, St. Antonius Hospital, Nieuwegein, The Netherlands
10. Department of Gastroenterology and Hepatology, University Medical Center Maastricht, Maastricht, The Netherlands
11. Department of Gastroenterology and Hepatology, Reinier de Graaf Medical Center, Delft, The Netherlands
12. Department of Gastroenterology and Hepatology, Medisch Spectrum Twente, Enschede, The Netherlands
13. Department of Gastroenterology and Hepatology, Rijnstate Hospital, Arnhem, The Netherlands