TRENDS IN THE ULCERATIVE COLITIS TO CROHN'S DISEASE INCIDENCE RATIO ARE DISTINCT BETWEEN EPIDEMIOLOGIC STAGES OF INFLAMMATORY BOWEL DISEASE.

Joseph W Windsor, Stephanie Coward, Lindsay Hracs, Joyce W Y Mak, Rupa Banerjee, Paulo G Kotze, Richard Gearry, Siew C Ng, Gilaad G Kaplan, Global IBD Visualization of Epidemiology Studies in the 21s,t Century (GIVES-21) Research Group