. 2005 Feb 24;4:14. doi: 10.1186/1475-2875-4-14
Copyright © 2005 van den Broek 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.
Patient flow during recruitment and follow-up