. 2021 Oct 19;12:136. doi: 10.4103/ijpvm.IJPVM_240_19
Copyright: © 2021 International Journal of Preventive Medicine
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.
Diagram 1.
CONSORT 2010 Flow Diagram