Affiliation: | 1. Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, the Netherlands;3. Department of Public Health, Erasmus University Medical Center, Rotterdam, the Netherlands;4. Department of Biostatistics, Erasmus University Medical Center, Rotterdam, the Netherlands;5. Gastrointestinal Unit, Centre for Molecular Medicine, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom;7. Gastroenterology Unit ASST Fatebenefratelli Sacco, Department of Biomedical and Clinical Sciences L. Sacco, Università di Milano, Milan, Italy;12. Department of Gastroenterology and Hepatology, Ramón y Cajal University Hospital, Madrid, Spain;8. Gastroenterology Section, Department of Surgery, Oncology and Gastroenterology, University Hospital of Padua, Padua, Italy |