1. Department of Hepato-Gastroenterology, University Hospitals Leuven, Uz Gasthuisberg, Leuven, Belgium
2. Imelda GI Clinical Research Centre, Imeldaziekenhuis Bonheiden, Bonheiden, Belgium
3. Inserm U954 and Department of Gastroenterology, Nancy University Hospital, Université de Lorraine, Vandœuvre-lès-Nancy, France