. 2011 Nov 25;11:894. doi: 10.1186/1471-2458-11-894
Copyright ©2011 Prick et al.; licensee BioMed Central Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
Figure 1.
Research procedure.