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3. Google Shopping queries for vaping products, JUUL and IQOS during the e-cigarette, or Vaping, product use associated lung injury (EVALI) outbreak;Leas;Tob Control,2021
4. Industry watch: heat-not-burn tobacco products are about to reach their boiling point;Caputi;Tob Control,2016
5. They're heating up: Internet search query trends reveal significant public interest in heat-not-burn tobacco products;Caputi;PLoS One,2017