Journal of Crohn's and Colitis : Abstracts of the 12th Congress of ECCO "Inflammatory Bowel Diseases" : February 15-18, 2017, Barcelona, Spain / European Crohn’s and Colitis Organisation, Oxford : Oxford University Press, 2018, vol. 12, suppl. 1, February, p. S042-S043, no. DOP019 Web of Science