. 2013 Dec 23;2013:751728. doi: 10.1155/2013/751728
Copyright © 2013 Huan-Ming Chuang 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 5.
The structure of proposed model 2.