1. Department of Gastroenterology, IDIBAPS, Hospital Clínic, CIBER-EHD, Barcelona, Spain
2. Bioinformatics Platform, CIBER-EHD, Barcelona, Spain
3. IBD Research Laboratory, Surgery Department, University of Campinas, Sao Paulo, Brazil
4. Department of Gastroenterology, Hospital Universitari de Bellvitge-Institut d’Investigació Biomèdica de Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain
5. Boehringer-Ingelheim Pharmaceuticals, Ridgefield, CT, USA