. 2014 Apr 1;106(7):L25–L28. doi: 10.1016/j.bpj.2013.12.056
© 2014 The Authors
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.