. 2010 Sep 7;1:115. doi: 10.3389/fphar.2010.00115
Copyright © 2010 Simoens.
This is an open-access article subject to an exclusive license agreement between the authors and the Frontiers Research Foundation, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.
Figure 1.
Flow chart of literature search.