title: Erratum.
abstract: In the article by Takahashi et al., entitled "Reduced abundance of butyrate-producing bacteria species in the fecal microbial community in Crohn's disease" [Digestion 2016;93:59– 65, DOI: 10.1159/000441768], the name sequence of the authors was corrected, missing underlining in table 1 was added, and an error in the legend of figure 1 was corrected.