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Monitoring and Identifying Emerging e-Cigarette Brands and Flavors on Twitter: Observational Study
On January 2, 2020, the Food and Drug Administration (FDA) announced the flavor enforcement policy, which was later implemented on February 6, 2020, to ban the sale of all unauthorized flavored cartridge-based e-cigarette products, except tobacco and menthol-flavored products [11]. Following the FDA flavor enforcement policy on May 18, 2020, the New York state banned all e-cigarette flavors, except the tobacco flavor [12].
JMIR Form Res 2022;6(12):e42241
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User Perceptions of Different Electronic Cigarette Flavors on Social Media: Observational Study
We applied a data-driven approach to construct a hierarchical e-liquid flavor classification, including 3 levels: major flavor categories (column 1 in Table 1), subcategories (column 2 in Table 1), and specific flavors (column 3 in Table 1). Specific flavor names were first standardized based on the flavor components and key ingredients because different brands or websites may use different names for the same flavor.
J Med Internet Res 2020;22(6):e17280
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