. 2017 Nov 27;31(1):65–70. doi: 10.20524/aog.2017.0215
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.