Published on in Vol 21 , No 4 (2019) :April
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/13082, first published
.

1 Celiac Disease Center, Columbia University, New York, NY, United States
2 Microsoft Research, Herzeliya, Israel
3 Technion, Haifa, Israel