. 2014 Apr 7;2014:373254. doi: 10.1155/2014/373254
Copyright © 2014 T. H. Rassem and B. E. Khoo.
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 7.
Some images from Outex database.