. 2015 Nov 4;87(2):158–164. doi: 10.3109/17453674.2015.1111075
© 2015 The Author(s). Published by Taylor & Francis on behalf of the Nordic Orthopedic Federation.
This is an Open Access article distributed under the terms of the Creative Commons Attribution-Non-Commercial License (https://creativecommons.org/licenses/by-nc/3.0)
Figure 1.
CONSORT 2010 flow diagram.