Published on in Vol 3, No 4 (2018): Oct-Dec
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/10212, first published
.
1 Faculty of Informatics and Engineering, The University of Electro-Communications, Tokyo, Japan
2 Department of General Medicine, School of Medicine, Juntendo University, Tokyo, Japan
3 Center for Preventive Medicine, NTT Medical Center Tokyo, Tokyo, Japan