Published on in Vol 7, No 2 (2019): Apr-Jun
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/14026, first published
.
1 Department of Biomedical Informatics, The University of Tokyo, Tokyo, Japan
2 Division of Health Policy and Management, Center for Community Medicine, Jichi Medical University, Tochigi, Japan