. 2016 Sep 20;8(9):2849–2854. doi: 10.19082/2849
© 2016 The Authors
This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
Figure 1.
CONSORT flow diagram of the trial