. 2012 May 16;5:243. doi: 10.1186/1756-0500-5-243
Copyright ©2012 Sahli and Shibuya; 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 4.
Tips. This figure shows some tips (i.e. C, D, F and I).