Published on in Vol 8, No 7 (2020): July
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/14013, first published
.
1 Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, Republic of Korea
2 Platform Development Team, Bluecore, Seoul, Republic of Korea
3 Department of Home Economics, Korea National Open University, Seoul, Republic of Korea