A new scoring system of mucosal injury in Crohn's disease of the small intestine, the CECDAI, was validated. Its use in controlled trials and/or regular follow-up of these patients is advocated.

Colonoscopy did not affect QOL in the short or the long duration after the procedure. As such, colonoscopy may be suitable as a part of screening programs. We believe that QOL estimation should be an integral part of assessment of a screening program.

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