1 Division of Gastroenterology and Hepatology, Department of Medicine, University of Calgary, Calgary, Alberta, Canada.
2 Department of Community Health and Epidemiology, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
3 Department of Medicine, University of Manitoba IBD Clinical and Research Centre, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.
4 SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children (SickKids), Toronto, Ontario, Canada; Department of Paediatrics, Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; Child Health Evaluative Sciences, SickKids Research Institute, Toronto, Ontario, Canada; ICES, Toronto, Ontario, Canada.
5 Division of Gastroenterology and Hepatology, McGill University Hospital Centre, McGill University, Montreal, Quebec, Canada.
6 Department of Medicine, University of Otago, Christchurch, New Zealand.
7 Departments of Medicine and Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.
8 Centre for Genomics and Experimental Medicine, University of Edinburgh, Edinburgh, United Kingdom.
9 Division of Gastroenterology and Hepatology, Departments of Medicine and Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.
10 The Juliet Keidan Institute of Pediatric Gastroenterology and Nutrition, Shaare Zedek Medical Center, The Hebrew University of Jerusalem, Jerusalem, Israel.
11 Department of Medicine, Parc Taulí Hospital Universitari, Sabadell, Spain, Department of Medicine, Universitat Autònoma de Barcelona, Bellaterra, Spain, and CIBERehd, Instituto de Salud Carlos III, Madrid, Spain.
12 Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota.
13 Departments of Medicine and Community Health Sciences, University of Manitoba IBD Clinical and Research Centre, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada, and CancerCare Manitoba Research Institute, Winnipeg, Manitoba, Canada.
14 Gastrounit, Medical Division, and Copenhagen Center for Inflammatory Bowel Disease in Children, Adolescents and Adults, Copenhagen University Hospital-Amager and Hvidovre, Hvidovre, Denmark.
15 Inflammatory Bowel Disease Unit, Division of Gastroenterology and Hepatology, University of Calgary, Calgary, Alberta, Canada.
16 Zane Cohen Centre for Digestive Diseases, Mount Sinai Health, Toronto, Ontario, Canada.
17 Alberta Health Services, Calgary, Alberta, Canada.
18 Department of Gastroenterology, McGill University, Montreal, Quebec, Canada, and Department of Internal Medicine and Oncology, Semmelweis University, Budapest, Hungary.
19 Department of Community Health Sciences and Division of Gastroenterology and Hepatology, Department of Medicine, University of Calgary, Calgary, Alberta, Canada.
20 Department of Gastroenterology, Christchurch Hospital, Christchurch, New Zealand, and Department of Medicine, University of Otago, Christchurch, New Zealand.
21 Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada, and The Ottawa Hospital IBD Centre, Ottawa, Ontario, Canada.
22 Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China.
23 Section of Pediatric Gastroenterology, Department of Pediatrics, Max Rady College of Medicine, Rady Faculty of Health Sciences and Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada.