. 2020 Sep;49(9):1769–1775. doi: 10.18502/ijph.v49i9.4098
Copyright © 2020 Ahmadi et al. Published by Tehran University of Medical Sciences
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International license (https://creativecommons.org/licenses/by-nc/4.0/). Non-commercial uses of the work are permitted, provided the original work is properly cited.