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. 2021 Nov 10;28(5):755–763. doi: 10.1093/ibd/izab256

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© 2021 Crohn’s & Colitis Foundation. Published by Oxford University Press on behalf of Crohn’s & Colitis Foundation.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Figure 4. — A, Box Whisker plot for levels of valine associated with ulcerative colitis localization, according to the Paris classification (E1: ulcerative proctitis, E2: left sided UC, E3: extensive UC, E4: pancolitis). Ordinal regression model showed a positively significant (P < .05) association between levels of valine and more extended disease in UC patients. B, Box Whisker plot, illustrating a positively significant (P < .05) association between levels of tryptophan and more extended disease (pancolitis) in UC patients. C, Box Whisker plot, illustrating a positively significant (P < .05) association between levels of histidine and more extended disease (pancolitis) in UC patients.