. Author manuscript; available in PMC: 2019 Jul 8.
Published in final edited form as: J Clin Trials. 2015 Mar 23;5(2):217. doi: 10.4172/2167-0870.1000217
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. (http://creativecommons.org/licenses/by/4.0/)
Figure 1. All trial sites.
