. 2014 May 31;6(1):14. doi: 10.1186/1866-1955-6-14
Copyright © 2014 Nuske 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 credited.
Figure 1.
Experimental set-up.