1. Department of Medicine, Division of Gastroenterology, Hospital of the University of Pennsylvania, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
2. Robarts Clinical Trials, Robarts Research Institute and University of Western Ontario, London, Ontario, Canada
3. Department of Medicine, Section of Gastroenterology, University of Chicago Medical Center, Chicago, Illinois
4. Atlanta Gastroenterology Specialists, Atlanta, Georgia
5. Janssen Scientific Affairs, LLC., Horsham, Pennsylvania
6. Janssen Pharmaceutical Research & Development, LLC., Spring House, Pennsylvania
7. Division of Gastroenterology, University of California San Diego, La Jolla, California