Presentation of data defining clinically meaningful responses for the Bowel Domain and Functional Domain in the CDPRO/SS short Patient Reported Outcomes Instrument (SS is for Signs and Symptoms, not short). This is a shortened 6 Q version of the full 5 domain CDPRO instrument. This has the support of the EMA and is under review by the FDA for qualification as the gold standard PRO for use in Crohn's disease clinical trials.