. 2012 Apr 10;2012:949586. doi: 10.1155/2012/949586
Copyright © 2012 Maureen E. Angell 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.
Graphic representation of the sibling subsystem.