. 2013 Apr 18;2013:856743. doi: 10.1155/2013/856743
Copyright © 2013 Sibylle Adam 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.
Study design (FU = follow-up; mo. = month).