. 2008 Sep 16;8:33. doi: 10.1186/1471-2377-8-33
Copyright © 2008 Arezzo 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 2.
Weekly least-squares mean pain scores.