Correction to: BMC Gastroenterology (2020) 20:263 https://doi.org/10.1186/s12876-020-01386-w

Following publication of the original article [1], the authors identified an error in corresponding author marked in the articles. The correct corresponding author is as follows:

Tongluk Teerasarntipan1, Roongruedee Chaiteerakij1,2, Piyapan Prueksapanich1,*, Duangporn Werawatganon3