. 2018 Aug 1;2018:4691417. doi: 10.1155/2018/4691417
Copyright © 2018 Klemens Fondi 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.
Randomization process and study design.