. 2020 Apr 30;8(4):e13836. doi: 10.2196/13836
©Ji Eun Hwang, Byung Ook Seoung, Sang-Oh Lee, Soo-Yong Shin. Originally published in JMIR Medical Informatics (http://medinform.jmir.org), 30.04.2020.
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 Medical Informatics, is properly cited. The complete bibliographic information, a link to the original publication on http://medinform.jmir.org/, as well as this copyright and license information must be included.
Figure 2.
Comparison between top-down approach and bottom-up approach.