Published on in Vol 22, No 9 (2020): September
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/18414, first published
.
1 Department of Community Health Sciences, Aga Khan University, Karachi, Pakistan
2 Department of Paediatrics and Child Health, Aga Khan University, Karachi, Pakistan
3 Digital Health Resource Centre, Aga Khan Development Network, Karachi, Pakistan