Published on in Vol 5, No 1 (2019): Jan-Jun
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/11921, first published
.
1 Department of Surgery, Tokai University School of Medicine, Kanagawa, Japan
2 Faculty of Science and Engineering, Waseda University, Tokyo, Japan
*these authors contributed equally