Correction to: BMC Gastroenterology (2020) 20:296 https://doi.org/10.1186/s12876-020-01441-6

After publication of this article [1], the authors reported three adjustments:

  1. 1.

    Competing interests: the travel grants were paid by HLW Pharma instead of TEVA Pharma.

  2. 2.

    TGN-units all over the manuscript have to be adjusted from pmol/8 × 105 RBC to pmol/8 × 108 RBC.

  3. 3.

    Some minor textual adjustments.

The original article [1] has been updated.