. 2012 Jun 3;2012:763591. doi: 10.5402/2012/763591
Copyright © 2012 Gerardo Alvarez-Uria et al.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
Flowchart of the outcomes of the study.