. 2013 Apr-Jun;2(2):77–85. doi: 10.4103/2303-9027.117691
Copyright: © Endoscopic Ultrasound
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.