. 2013 Feb 10;4:26–37. doi: 10.5116/ijme.5103.a8d3
Copyright: © 2013 Katherine Y. Lin et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License which permits unrestricted use of work provided the original work is properly cited. http://creativecommons.org/licenses/by/3.0/
Figure 1.
Selection of the articles for the critical review