. 2011 Dec 14;3:34. doi: 10.1186/1758-5996-3-34
Copyright ©2011 El Akoum et al; licensee BioMed Central Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.