. 2019 Apr 30;25(2):222–232. doi: 10.5056/jnm18125
© 2019 The Korean Society of Neurogastroenterology and Motility
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.