. 2012 Mar 9;16(2):R43. doi: 10.1186/cc11241
Copyright © 2012 Fowler 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.
Study eligibility diagram.