. 2011 Mar 23;2:41. doi: 10.3389/fpsyg.2011.00041
Copyright © 2011 Hill, Claes, Corcoran, Walters, Johnston and Clement.
This is an open-access article subject to an exclusive license agreement between the authors and Frontiers Media SA, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.