However, the relative search volume of disposable e-cigarette brands like Elf Bar, Puff Bar, and Geek Bar showed an increasing trend over time [ 30 ], which roughly corresponds to the trend shown in Figure 2 B.
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Monitoring and Identifying Emerging e-Cigarette Brands and Flavors on Twitter: Observational Study.
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The sentences
The longitudinal trend of the e-cigarette brands showed that JUUL was the most popular e-cigarette brand mentioned on Twitter; however, there was a decreasing trend in the mention of JUUL over time on Twitter.