. 2015 Jul-Dec;21(2):130–133. doi: 10.4103/1117-6806.162567
Copyright: © Nigerian Journal of Surgery
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.