. Author manuscript; available in PMC: 2015 Dec 31.
Published in final edited form as: Ann Biomed Eng. 2015 Jun 5;44(1):112–127. doi: 10.1007/s10439-015-1351-2
OPEN ACCESS
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.