. 2014 Oct 15;68(5):308–312. doi: 10.5455/medarh.2014.68.308-312
Copyright: © AVICENA
This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
CONSORT diagram of the study