. 2018 Apr 22;2018:8450793. doi: 10.1155/2018/8450793
Copyright © 2018 Komal Shah and Pratik Shah.
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.
Flow diagram of the study selection process.