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Extra-intestinal Manifestations at Diagnosis in Paediatric- and Elderly-onset Ulcerative Colitis are Associated With a More Severe Disease Outcome: A Population-based Study

P. Varlet, I. Iwanicki-Caron, C. Elie, 2017, Journal of Crohn's & colitis.

Ulcerative proctitis is a frequent location of paediatric-onset UC and not a minor disease: a population-based study

I. Iwanicki-Caron, F. Vasseur, G. Savoye, 2016, Gut.