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Composition of fecal microbiota in HC, UC patients, and CD patients at the phylum (A), genus (B), and species (C) level. Compared to HC and UC patients, CD patients had significantly higher abundances of the phylum Proteobacteria, the genus Escherichia, and the species Escherichia coli. HC, healthy control individuals; UC, ulcerative colitis; CD, Crohn’s disease.
