. 2011 Jun 1;9:67. doi: 10.1186/1741-7015-9-67
Copyright ©2011 Aalbers 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 4.
Forest plots of Centor scores 0-1, 2, 3 and 4.