1 Center for Inflammatory Bowel Diseases, Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA. Electronic address: kpapamic@bidmc.harvard.edu.
2 IBD Center, Department of Gastroenterology, Guy's and St Thomas' NHS Foundation Trust, London, UK.
3 Department of Gastroenterology, Nancy University Hospital, Nancy, France and INSERM U1256 NGERE, Lorraine University, Nancy, France; Department of Gastroenterology, University Hospital of Marseille Nord, University of Aix-Marseille, Marseille, France.
4 Department of Medicine, Division of Gastroenterology, McGill University Health Center, Montreal, QC, Canada.
5 Division of Gastroenterology, Department of Medicine, Weill Cornell Medical College, New York, NY; Gastro Florida, Tampa, FL.
6 Department of Gastroenterology, University Hospital of Saint Etienne, Saint Etienne, France.
7 Department of Gastroenterology, Sheba Medical Center, Tel Aviv University, Israel.
8 Department of Gastroenterology and Hepatology, Amsterdam UMC, Amsterdam, The Netherlands.
9 Department of Inflammatory Bowel Disease, St Mark's National Bowel Hospital, & Department of Metabolism, Digestion and Reproduction, Imperial College London, UK.
10 Division of Gastroenterology, Hepatology, and Nutrition, University of Minnesota, Minneapolis, Minnesota.
11 Medical College of Wisconsin, Milwaukee, WI.
12 Center for Inflammatory Bowel Diseases, Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA.
13 Division of Gastroenterology, Cedars-Sinai Medical Center, Los Angeles, California; Division of Gastroenterology, Centre Hospitalier de l'Universite de Montreal, Montreal, QC, Canada.
14 CIRI (Centre International de Recherche en Infectiologie), Université Claude Bernard Lyon 1, INSERM U1111, CNRS, UMR5308, ENS Lyon, Université Jean Monnet de Saint-Etienne, France.
15 Division of Gastroenterology, Department of Medicine, Weill Cornell Medical College, New York, NY; Division of Gastroenterology, Centre Hospitalier de l'Universite de Montreal, Montreal, QC, Canada.
16 Department of Gastroenterology, Nancy University Hospital, Nancy, France and INSERM U1256 NGERE, Lorraine University, Nancy, France.