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2. 2014. Accessed June 2, 2023. http://data.europa.eu/eli/dir/2014/40/oj
3. European Union. Council Directive 2007/74/EC of 20 December 2007 on the exemption from value added tax and excise duty of goods imported by persons travelling from third countries. Official Journal of the European Union; 2007. Accessed June 2, 2023. http://data.europa.eu/eli/dir/2007/74/oj
4. European Union. Council Directive 2011/64/EU of 21 June 2011 on the structure and rates of excise duty applied to manufactured tobacco (codification). Official Journal of the European Union; 2011. Accessed June 2, 2023. http://data.europa.eu/eli/dir/2011/64/oj
5. Flavored Tobacco Product Use Among U.S. Young Adults