[1] World Health Organization. Tobacco: e-cigarettes. 2022. https://www.who.int/news-room/questions-and-answers/item/tobacco-e-cigarettes. [2023-12-13].
[2] Standing Committee of the National People’s Congress. Law of the People’s Republic of China on the protection of minors. 2020. https://www.gov.cn/xinwen/2020-10/18/content_5552113.htm. [2020-10-17]. (In Chinese). 
[3] The State Council of the People's Republic of China. Decision of the State Council on Amending the Regulation on the Implementation of the Law of the People’s Republic of China on Tobacco Monopoly. 2021. https://www.gov.cn/zhengce/content/2021-11/26/content_5653631.htm. [2023-12-15]. (In Chinese). 
[4] State Tobacco Monopoly Administration. Measures for the administration of electronic cigarettes. 2022. https://www.gov.cn/govweb/gongbao/content/2022/content_5697988.htm. [2023-12-15]. (In Chinese). 
[5] Liao HL, Yang L, Zheng PP, Deng H, He Y, Gao X, et al. Current situation and influencing factors of e-cigarette use among adolescents in Chengdu. Med Soc 2022;35(5):71 − 4,85. https://doi.org/10.13723/j.yxysh.2022.05.014CrossRef
[6] Xu QQ, Zhu YY, Ding SG, Jin QY, Dong Y. Investigation on e-cigarette use among middle school students in Ningbo City. J Prev Med 2023;35(9):814 − 9. https://doi.org/10.19485/j.cnki.issn2096-5087.2023.09.019CrossRef
[7] Zhang FF, Zhang WC, Shen K, Zhang SY, Jiang YG, Xi C. Analysis on influencing factors of adolescent students trying cigarettes and e-cigarettes in Songjiang District of Shanghai. Occup Health 2021;37(19):2687 − 91. https://doi.org/10.13329/j.cnki.zyyjk.2021.0632CrossRef
[8] Zhou L, Huang XJ, Luo Y, Ma LN, Xu JD. Status of current e-cigarettes use and its influencing factors among current middle school students in Hubei. Mod Prev Med 2021;48(19):3524-7,3578. https://d.wanfangdata.com.cn/periodical/xdyfyx202119015. (In Chinese). 
[9] Han DD, Wang YT. "Three noes" e-cigarette, easy to buy online and offline for teenagers. Legal Daily. 2023. http://epaper.legaldaily.com.cn/fzrb/content/20230619/Articel08002GN.htm. [2023-12-15]. (In Chinese). 
[10] Chinese Center for Disease Control and Prevention. Results of tobacco epidemic surveillance among middle school and college students in China in 2021 were released. 2022. http://www.xjcdc.com/jkzt1/spaq/xxws1/content_4300. [2023-12-15]. (In Chinese).