. 2011 Aug 10;2011:357350. doi: 10.1155/2011/357350
Copyright © 2011 Siew Ling Tey 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.
Flowchart of study participants.