References
- Agee J. 2009. Developing qualitative research questions: a reflective process. Int J Qual Stud Edu. 22:431–447.
- Ajzen I. 1991. The theory of planned behavior. Organ Behav Hum Decis Process. 50:179–211.
- Allen JG, Flanigan SS, LeBlanc M, Vallarino J, MacNaughton P, Stewart JH, Christiani DC. 2016. Flavoring chemicals in e-cigarettes: diacetyl, 2, 3-pentanedione, and acetoin in a sample of 51 products, including fruit-, candy-, and cocktail-flavored e-cigarettes. Environ Health Perspect. 124:733.
- Barrington-Trimis JL, Samet JM, McConnell R. 2014. Flavorings in electronic cigarettes: an unrecognized respiratory health hazard? JAMA. 312:2493–2494.
- Biener L, Song E, Sutfin EL, Spangler J, Wolfson M. 2015. Electronic cigarette trial and use among young adults: reasons for trial and cessation of vaping. Int J Environ Res Public Health. 12:16019–16026.
- Bonhomme MG, Holder-Hayes E, Ambrose BK, Tworek C, Feirman SP, King BA, Apelberg BJ. 2016. Flavoured non-cigarette tobacco product use among US adults: 2013–2014. Tob Control. 25:4–13.
- Cahn Z, Siegel M. 2011. Electronic cigarettes as a harm reduction strategy for tobacco control: a step forward or a repeat of past mistakes? J Publ Health Pol. 32:16–31.
- Chen JC. 2018. Flavored e-cigarette use and cigarette smoking reduction and cessation– a large national study among young adult smokers. Subst Use Misuse. 53:2017–2031.
- Chen JC, Das B, Mead EL, Borzekowski D. 2017. Flavored e-cigarette and cigarette smoking susceptibility among youth. Tob Regul Sci. 3:68–80.
- Chen JC, Green KM, Arria AM, Borzekowski DL. 2018. Prospective predictors of flavored e-cigarette use: a one-year longitudinal study of young adults in the U.S. Drug Alcohol Depend. 191:279–285.
- Chen JC, Green KM, Chen J, Hoke KS, Borzekowski DL. 2018. Restricting the sale of flavored e-cigarettes in the US: an examination of local regulations. Tob Regul Sci. 4:32–40.
- Choi K, Fabian L, Mottey N, Corbett A, Forster J. 2012. Young adults’ favorable perceptions of snus, dissolvable tobacco products, and electronic cigarettes: findings from a focus group study. Am J Publ Health. 102:2088–2093.
- Coleman BN, Johnson SE, Tessman GK, Tworek C, Alexander J, Dickinson DM, Rath J, Green KM. 2016. “It’s not smoke. It’s not tar. It’s not 4000 chemicals. Case closed”: Exploring attitudes, beliefs, and perceived social norms of e-cigarette use among adult users. Drug Alcohol Depend. 159:80–85.
- Drabble L, Trocki KF, Salcedo B, Walker PC, Korcha RA. 2016. Conducting qualitative interviews by telephone: lessons learned from a study of alcohol use among sexual minority and heterosexual women. Qual Soc Work. 15:118–133.
- Harrell MB, Loukas A, Jackson CD, Marti CN, Perry CL. 2017. Flavored tobacco product use among youth and young adults: what if flavors didn’t exist? Tob Regul Sci. 3:168–173.
- Hatsukami DK, Stead LF, Gupta PC. 2008. Tobacco addiction. Lancet. 371:2027–2038.
- Irvine A, Drew P, Sainsbury R. 2013. ‘Am I not answering your questions properly?’Clarification, adequacy and responsiveness in semi-structured telephone and face-to-face interviews. Qual Res. 13:87–106.
- Kennedy RD, Awopegba A, De León E, Cohen JE. 2016. Global approaches to regulating electronic cigarettes. Tob Control. 26:440-445.
- Kong G, Morean ME, Cavallo DA, Camenga DR, Krishnan-Sarin S. 2015. Reasons for electronic cigarette experimentation and discontinuation among adolescents and young adults. Nicotine Tob Res. 17:847–854.
- Kostygina G, Couch E, Walsh M, Grana R, Halpern-Felsher B, Lempert L, Ling P. 2014. FDA should prohibit flavors in all tobacco products in the current rule making. Center for Tobacco Control Research and Education University of California San Francisco. Available from: https://tobacco.ucsf.edu/sites/tobacco.ucsf.edu/files/u9/FDA-comment-deeming%20rule%20flavor%20comment%20June3AAA-1jy-8chl-vs81.pdf
- Kvale S. 1983. The qualitative research interview: a phenomenological and a hermeneutical mode of understanding. J Phenomenological Psychol. 14:171.
- McHugh ML. 2012. Interrater reliability: the kappa statistic. Biochem Med. 22:276–282.
- Novick G. 2008. Is there a bias against telephone interviews in qualitative research? Res Nurs Health. 31:391–398.
- Patel D, Davis KC, Cox S, Bradfield B, King BA, Shafer P, Caraballo R, Bunnell R. 2016. Reasons for current e-cigarette use among US adults. Prev Med. 93:14–20.
- Patton MQ. 1990. Qualitative evaluation and research methods. Newbury Park, CA: SAGE Publications, Inc. Available from: http://psycnet.apa.org/psycinfo/1990-97369-000
- Public Health England. 2015. E-cigarettes around 95% less harmful than tobacco estimates landmark review. Available from: https://www.gov.uk/government/news/e-cigarettes-around-95-less-harmful-than-tobacco-estimates-landmark-review
- Ramo DE, Hall SM, Prochaska JJ. 2010. Reaching young adult smokers through the internet: comparison of three recruitment mechanisms. Nicotine Tob Res. 12:768–775.
- Ramo DE, Young-Wolff KC, Prochaska JJ. 2015. Prevalence and correlates of electronic-cigarette use in young adults: findings from three studies over five years. Addict Behav. 41:142–147.
- Rice PL, Ezzy D. 1999. Qualitative research methods: a health focus. Melbourne, Australia: Oxford University Press. Available from: https://pdfs.semanticscholar.org/6455/3eeb64d62e2ff1bb501bcf360c1b024fa140.pdf#page=47
- Rosbrook K, Green BG. 2016. Sensory effects of menthol and nicotine in an e-cigarette. Nicotine Tob Res. 18:1588–1595.
- Stanton CA, Villanti AC, Watson C, Delnevo CD. 2016. Flavoured tobacco products in the USA: synthesis of recent multidiscipline studies with implications for advancing tobacco regulatory science. Tob Control. 25:ii1–ii3.
- Sutfin EL, McCoy TP, Morrell HE, Hoeppner BB, Wolfson M. 2013. Electronic cigarette use by college students. Drug Alcohol Depend. 131:214–221.
- The National Academies of Sciences, Engineering, and Medicine. 2018. Public health consequences of e-cigarettes [Internet]. Washington, DC: The National Academies Press. Available from: http://nap.edu/24952
- Tobacco Control Legal Consortium. 2014. Regulating flavored tobacco products. Sait Paul, MN: Public Health Law Center.
- Tseng T-Y, Ostroff JS, Campo A, Gerard M, Kirchner T, Rotrosen J, Shelley D. 2016. A randomized trial comparing the effect of nicotine versus placebo electronic cigarettes on smoking reduction among young adult smokers. Nicotine Tob Res. 18:1937–1943.
- U.S. Department of Health and Human Services. 2014. The health consequences of smoking—50 years of progress: a report of the Surgeon General. Available from: https://www.surgeongeneral.gov/library/reports/50-years-of-progress/index.html
- U.S. Food and Drug Administration. 2016. Deeming tobacco products to be subject to the Federal Food, Drug, and Cosmetic Act, as amended by the Family Smoking Prevention and Tobacco Control Act; Restrictions on the sale and distribution of tobacco products and required warning statements for tobacco products. Fed Regist. 81:28973.
- U.S. Food and Drug Administration. 2017. FDA announces comprehensive regulatory plan to shift trajectory of tobacco-related disease, death. Available from: https://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm568923.htm?source=govdelivery&utm_campaign=ctp-728regplan&utm_content=text-b&utm_medium=email&utm_source=govdelivery&utm_term=stratcomms
- Yingst JM, Veldheer S, Hammett E, Hrabovsky S, Foulds J. 2017. A method for classifying user-reported electronic cigarette liquid flavors. Nicotine Tob Res. 19:1381–1385. Available from: https://academic.oup.com/ntr/article/2846103