Published on in Vol 7, No 6 (2021): June
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/27590, first published
.
1 Yemen Field Epidemiology Training Programme, Ministry of Public Health and Population, Sana'a, Yemen
2 Department of Community Medicine, Public Health and Family Medicine, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan