. 2023 Jan 9;25:e38848. doi: 10.2196/38848
©Xinyi Lu. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 09.01.2023.
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 https://www.jmir.org/, as well as this copyright and license information must be included.
Figure 2.
Top results of searching “headache” through Baidu search engine.