. 2010 Jul 13;10:207. doi: 10.1186/1471-2334-10-207
Copyright ©2010 Soares-Weiser et al; licensee BioMed Central Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
Flow chart of studies included in this review.