Reference

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Wang, W., Cai, Y., He, Z., & Feng, N. (2019) Electronic Cigarette use in China: Awareness, prevalence and regulation. Tobacco Induced Diseases. 17(April), 30. http://doi.org/10.18332/tid/105393

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Population, total – China. (2019). The World Bank. Retrieved May 9, 2021, from https://data.worldbank.org/indicator/SP.POP.TOTL?end=2019&locations=CN&start=1960&view=chart

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Feng, G., Nan, Y., & Jiang, Y. (2018). Prevalence of e-cigarette in China: Preliminary findings from two surveys. Tobacco Induced Diseases, 16(1), 102. http://doi.org/10.18332/tid/84231