1. Departamento de Medicina, Facultad de Medicina, Universidad de Valencia, Valencia, Spain
2. Departamento de Farmacología and CIBER, Facultad de Medicina, Universidad de Valencia, Valencia, Spain
3. FISABIO, Hospital Dr. Peset, Valencia, Spain
4. IBD Unit, Germans Trias i Pujol Research Institute, Badalona, Spain
5. Department of Gastroenterology, Hospital De Sagunto, Valencia, Spain
6. Department of Surgery and Coloproctology, Hospital de Manises, Valencia, Spain
7. Department of Gastroenterology and Hepatology, University Hospital of Zurich, Zurich, Switzerland