Published on in Vol 6 , No 7 (2018) :July
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/8832, first published
.

1 Sydney School of Public Health, University of Sydney, Sydney, AU
2 Maternal and Child Health Division, International Center for Diarrhoeal Diseases Research, Dhaka, BD