title: Pitfalls and perils of using administrative databases to evaluate the incidence of inflammatory bowel disease overtime.
authors.affiliation: Departments of Medicine and Community Health Sciences, University of Calgary, Calgary, AB, Canada.
authors.forename: Gilaad G
authors.initials: GG
authors.lastname: Kaplan
mesh_terms: D005260:Female; D006801:Humans; D015212:Inflammatory Bowel Diseases / Q000453:epidemiology*; D008297:Male