. 2014 Oct 30;52(10):993–1004. doi: 10.3109/15563650.2014.973572
© 2014 The Author(s). Published by Taylor & Francis.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The moral rights of the named author(s) have been asserted.
Fig. 2.
Flow diagram for the literature search (Last performed Oct 1st 2014).