. 2013 Jun 4;1(1):66–78. doi: 10.1016/j.stemcr.2013.03.004
© 2013 The Authors
This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-No Derivative Works License, which permits non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited.
