. 2011 Apr 11;6:17. doi: 10.1186/1749-799X-6-17
Copyright ©2011 Shi and MacDermid; 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.
Patient self-reported symptom improvement at 6 months