. 2016 Mar 25;95(12):e3158. doi: 10.1097/MD.0000000000003158
Copyright © 2016 Wolters Kluwer Health, Inc. All rights reserved.
This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms. http://creativecommons.org/licenses/by-nc-sa/4.0
FIGURE 1.
Flowchart of study participants.