¹Department of Medicine and School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada;

²Ottawa Hospital Research Institute, Ottawa, Ontario, Canada;

³Division of Gastroenterology, The Ottawa Hospital IBD Centre, Ottawa, Ontario, Canada;

⁴ICES, Toronto, Ontario, Canada;

⁵Department of Paediatrics and Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada;

⁶SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada;

⁷Child Health Evaluative Sciences, SickKids Research Institute, Toronto, Ontario Canada.

Correspondence: Eric I. Benchimol, MD, MSc, FRCPC. E-mail: [email protected].