. 2020 Jul 6;8(7):e19902. doi: 10.2196/19902
©Keiichi Yamamoto, Tsubasa Takahashi, Miwa Urasaki, Yoichi Nagayasu, Tomonari Shimamoto, Yukiko Tateyama, Keiichi Matsuzaki, Daisuke Kobayashi, Satoshi Kubo, Shigeyuki Mito, Tatsuya Abe, Hideo Matsuura, Taku Iwami. Originally published in JMIR mHealth and uHealth (http://mhealth.jmir.org), 06.07.2020.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR mHealth and uHealth, is properly cited. The complete bibliographic information, a link to the original publication on http://mhealth.jmir.org/, as well as this copyright and license information must be included.
Figure 4.
Email sending screens. CSV: comma-separated values.