. 2014 Sep 23;2014:689536. doi: 10.1155/2014/689536
Copyright © 2014 Ahmad Sheibaninia 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 3.
In-Ovation R bracket, double layer.