. 2017 Apr 25;30(4):457–463. doi: 10.20524/aog.2017.0148
Copyright: © Hellenic Society of Gastroenterology
This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.