. 2017 Dec 15;31(2):205–210. doi: 10.20524/aog.2017.0221
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.