1. Department of Public Health Erasmus MC University Medical Center Rotterdam The Netherlands
2. Department of Gastroenterology and Hepatology Netherlands Cancer Institute—Antoni van Leeuwenhoek Hospital Amsterdam The Netherlands
3. Department of Gastroenterology and Hepatology Erasmus MC University Medical Center Rotterdam The Netherlands
4. Department of Pathology Erasmus MC University Medical Center Rotterdam The Netherlands
5. Department of Clinical Chemistry Erasmus MC University Medical Center Rotterdam The Netherlands
6. Department of Gastroenterology and Hepatology Amsterdam University Medical Centers—Academic Medical Center Amsterdam The Netherlands
7. Department of Pathology Radboud University Medical Center Nijmegen The Netherlands
8. Department of Gastroenterology and Hepatology Leiden University Medical Center Leiden the Netherlands