. 2022 Apr 30;28(2):212–221. doi: 10.5056/jnm21044
© 2022 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.
Figure 1.
Flow chart of study selection.