1. Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
2. Department of Cardiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
3. Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands
4. Gastroenterology and Hepatology Department, Hospital Gelderse Vallei, Ede, The Netherlands
5. Department of Microbiology and Immunology, Rega Institute for Medical Research, Leuven, Belgium
6. Center for Microbiology, VIB, Leuven, Belgium
7. Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands