. 2013 Dec 3;99(2):E348–E355. doi: 10.1210/jc.2013-2918
Copyright © 2014 by The Endocrine Society
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/us/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.