Published on in Vol 5, No 4 (2019): Oct-Dec
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/14461, first published
.
1 Yemen Field Epidemiology Training Program, The Eastern Mediterranean Public Health Network, Sanaa, Yemen
2 Department of Community Medicine, Public Health and Family Medicine, Faculty of Medicine, Jordan University of Science & Technology, Amman, Jordan