. 2014 Sep 11;2014:434326. doi: 10.1155/2014/434326
Copyright © 2014 Rosa Yáñez Gómez 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 8.
Prototype 2 main changes.