. 2011 Apr 17;2011:917350. doi: 10.5402/2011/917350
Copyright © 2011 Christian Bacci et al.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
Trend of means ± standard errors for the VAS.