Published on in Vol 11 , No 2 (2019) :Apr-Jun
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/11167, first published
.

1 PatientsLikeMe, Cambridge, MA, United States
2 Takeda Pharmaceuticals, Cambridge, MA, United States
3 Takeda Pharmaceuticals, Deerfield, IL, United States