. 2019 Mar 14;8:63. doi: 10.4103/jehp.jehp_200_18
Copyright: © 2019 Journal of Education and Health Promotion
This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.
Figure 1.
PRISMA flowchart diagram of the searched and selection of papers