参考文献:
[1] gentzke as, creamer m, cullen ka, et al. vital signs: tobacco product use among middle and high school students—united states, 2011–2018. mmwr morb mortal wkly rep. 2019;68(6):157-164. doi: 10.15585/mmwr.mm6806e1
[2] karen a. cullen, andrea s. gentzke, michael d. sawdey, et al., e-cigarette use among youth in the united states, 2019. jama. 2019. doi:10.1001/jama.2019.18387
[3] hajek p, phillips-waller a, przulj d, et al. a randomized trial of e-cigarettes versus nicotine-replacement therapy. n engl j med 2019; 380:629-37
[4] e-cigarettes versus nicotine-replacement therapy for smoking cessation. n engl j med 380;20 nejm.org may 16, 2019. doi: 10.1056/nejmc1903758
[5] drazen jm, morrissey s, campion ew. the dangerous flavors of e-cigarettes. n engl j med 2019;380:679-80.
[6] https://e-cigarettes.surgeongeneral.gov/knowtherisks.html#risks
[7] https://www.hhs.gov/about/news/2019/09/11/trump-administration-combating-epidemic-youth-ecigarette-use-plan-clear-market.html