. 2007 Dec 21;7:209. doi: 10.1186/1472-6963-7-209
Copyright © 2007 Björkdahl and Sunnerhagen; 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 the eligible patients.