. 2021 Jul 24;2021:8629039. doi: 10.1155/2021/8629039
Copyright © 2021 Pashupati Pokharel 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 3.
Countries included in the study.