. 2021 Jul 6;10(3):e27302. doi: 10.2196/27302
©Zidian Xie, Xueting Wang, Yu Gu, Dongmei Li. Originally published in the Interactive Journal of Medical Research (https://www.i-jmr.org/), 06.07.2021.
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 Interactive Journal of Medical Research, is properly cited. The complete bibliographic information, a link to the original publication on https://www.i-jmr.org/, as well as this copyright and license information must be included.
Figure 1.
The popularity of e-cigarette videos on YouTube over time.