1 Gastroenterology and Endoscopy, IRCCS San Raffaele Hospital and Vita Salute San Raffaele University, Milan, Italy.
2 Inflammatory Bowel Disease Unit, Department of Gastroenterology, Hospital Clínic de Barcelona, IDIBAPS, CIBEREHD, Barcelona, Spain.
3 Susan and Leonard Feinstein Inflammatory Bowel Disease Clinical Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
4 Pfizer Inc., Collegeville, PA, USA.
5 Pfizer Inc., Oslo, Norway.
6 Department of Internal Medicine I, University Hospital Schleswig-Holstein, Kiel University, Kiel, Germany.
7 Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Universidad Autónoma de Madrid (UAM), Madrid, Spain.