. 2014 Dec 30;9(3):693–696. doi: 10.3892/etm.2014.2159
Copyright © 2015, Spandidos Publications
This is an open-access article licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. The article may be redistributed, reproduced, and reused for non-commercial purposes, provided the original source is properly cited.