. 2020 Dec 1;22(12):e22631. doi: 10.2196/22631
©Yiyuan Cai, Wenjie Gong, Hua He, James P Hughes, Jane Simoni, Shuiyuan Xiao, Stephen Gloyd, Meijuan Lin, Xinlei Deng, Zichao Liang, Wenjun He, Bofeng Dai, Jing Liao, Yuantao Hao, Dong (Roman) Xu. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 01.12.2020.
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 the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.
Figure 1.
Trial design.